doc: update doc styles

* feat: CopyOnWriteList adds more functions such as ForEach, Sort

* feat: CopyOnWriteList adds more functions such as ForEach, Sort

.gitignore

@@ -6,5 +6,9 @@ fileutil/*.txt
 fileutil/*.zip
 fileutil/*.link
 fileutil/unzip/*
+fileutil/tempdir/*
 slice/testdata/*
-cryptor/*.pem
+cryptor/*.pem
+test
+docs/node_modules
+docs/.vitepress/cache

algorithm/lrucache_test.go

@@ -7,6 +7,7 @@ import (
 )
 
 func TestLRUCache(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestLRUCache")
 
 	cache := NewLRUCache[int, int](3)

algorithm/search_test.go

@@ -7,6 +7,7 @@ import (
 )
 
 func TestLinearSearch(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestLinearSearch")
 
 	numbers := []int{3, 4, 5, 3, 2, 1}
@@ -19,6 +20,7 @@ func TestLinearSearch(t *testing.T) {
 }
 
 func TestBinarySearch(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestBinarySearch")
 
 	sortedNumbers := []int{1, 2, 3, 4, 5, 6, 7, 8}

algorithm/sort_test.go

@@ -46,6 +46,7 @@ func (c *intComparator) Compare(v1 any, v2 any) int {
 }
 
 func TestBubbleSortForStructSlice(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestBubbleSortForStructSlice")
 
 	peoples := []people{
@@ -65,6 +66,7 @@ func TestBubbleSortForStructSlice(t *testing.T) {
 }
 
 func TestBubbleSortForIntSlice(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestBubbleSortForIntSlice")
 
 	numbers := []int{2, 1, 5, 3, 6, 4}
@@ -75,6 +77,7 @@ func TestBubbleSortForIntSlice(t *testing.T) {
 }
 
 func TestInsertionSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestInsertionSort")
 
 	peoples := []people{
@@ -94,6 +97,7 @@ func TestInsertionSort(t *testing.T) {
 }
 
 func TestSelectionSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestSelectionSort")
 
 	peoples := []people{
@@ -113,6 +117,7 @@ func TestSelectionSort(t *testing.T) {
 }
 
 func TestShellSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestShellSort")
 
 	peoples := []people{
@@ -132,6 +137,7 @@ func TestShellSort(t *testing.T) {
 }
 
 func TestQuickSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestQuickSort")
 
 	peoples := []people{
@@ -151,6 +157,7 @@ func TestQuickSort(t *testing.T) {
 }
 
 func TestHeapSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestHeapSort")
 
 	peoples := []people{
@@ -170,6 +177,7 @@ func TestHeapSort(t *testing.T) {
 }
 
 func TestMergeSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestMergeSort")
 
 	peoples := []people{
@@ -189,6 +197,7 @@ func TestMergeSort(t *testing.T) {
 }
 
 func TestCountSort(t *testing.T) {
+	t.Parallel()
 	asssert := internal.NewAssert(t, "TestCountSort")
 
 	peoples := []people{
@@ -200,7 +209,6 @@ func TestCountSort(t *testing.T) {
 	}
 	comparator := &peopleAgeComparator{}
 	sortedPeopleByAge := CountSort(peoples, comparator)
-	t.Log(sortedPeopleByAge)
 
 	expected := "[{d 8} {b 10} {c 17} {a 20} {e 28}]"
 	actual := fmt.Sprintf("%v", sortedPeopleByAge)

compare/compare.go

@@ -0,0 +1,71 @@
+// Copyright 2023 dudaodong@gmail.com. All rights resulterved.
+// Use of this source code is governed by MIT license
+
+// Package compare provides a lightweight comparison function on any type.
+// reference: https://github.com/stretchr/testify
+package compare
+
+import (
+	"reflect"
+	"time"
+
+	"github.com/duke-git/lancet/v2/convertor"
+	"github.com/duke-git/lancet/v2/mathutil"
+	"golang.org/x/exp/constraints"
+)
+
+// operator type
+const (
+	equal          = "eq"
+	lessThan       = "lt"
+	greaterThan    = "gt"
+	lessOrEqual    = "le"
+	greaterOrEqual = "ge"
+)
+
+var (
+	timeType  = reflect.TypeOf(time.Time{})
+	bytesType = reflect.TypeOf([]byte{})
+)
+
+// Equal checks if two values are equal or not. (check both type and value)
+// Play: https://go.dev/play/p/wmVxR-to4lz
+func Equal(left, right any) bool {
+	return compareValue(equal, left, right)
+}
+
+// EqualValue checks if two values are equal or not. (check value only)
+// Play: https://go.dev/play/p/fxnna_LLD9u
+func EqualValue(left, right any) bool {
+	ls, rs := convertor.ToString(left), convertor.ToString(right)
+	return ls == rs
+}
+
+// LessThan checks if value `left` less than value `right`.
+// Play: https://go.dev/play/p/cYh7FQQj0ne
+func LessThan(left, right any) bool {
+	return compareValue(lessThan, left, right)
+}
+
+// GreaterThan checks if value `left` greater than value `right`.
+// Play: https://go.dev/play/p/9-NYDFZmIMp
+func GreaterThan(left, right any) bool {
+	return compareValue(greaterThan, left, right)
+}
+
+// LessOrEqual checks if value `left` less than or equal to value `right`.
+// Play: https://go.dev/play/p/e4T_scwoQzp
+func LessOrEqual(left, right any) bool {
+	return compareValue(lessOrEqual, left, right)
+}
+
+// GreaterOrEqual checks if value `left` greater than or equal to value `right`.
+// Play: https://go.dev/play/p/vx8mP0U8DFk
+func GreaterOrEqual(left, right any) bool {
+	return compareValue(greaterOrEqual, left, right)
+}
+
+// InDelta checks if two values are equal or not within a delta.
+func InDelta[T constraints.Integer | constraints.Float](left, right T, delta float64) bool {
+	return float64(mathutil.Abs(left-right)) <= delta
+}

compare/compare_example_test.go

@@ -0,0 +1,196 @@
+package compare
+
+import (
+	"fmt"
+	"time"
+)
+
+func ExampleEqual() {
+	result1 := Equal(1, 1)
+	result2 := Equal("1", "1")
+	result3 := Equal([]int{1, 2, 3}, []int{1, 2, 3})
+	result4 := Equal(map[int]string{1: "a", 2: "b"}, map[int]string{1: "a", 2: "b"})
+
+	result5 := Equal(1, "1")
+	result6 := Equal(1, int64(1))
+	result7 := Equal([]int{1, 2}, []int{1, 2, 3})
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+	fmt.Println(result5)
+	fmt.Println(result6)
+	fmt.Println(result7)
+
+	// Output:
+	// true
+	// true
+	// true
+	// true
+	// false
+	// false
+	// false
+}
+
+func ExampleEqualValue() {
+	result1 := EqualValue(1, 1)
+	result2 := EqualValue(int(1), int64(1))
+	result3 := EqualValue(1, "1")
+	result4 := EqualValue(1, "2")
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+
+	// Output:
+	// true
+	// true
+	// true
+	// false
+}
+
+func ExampleLessThan() {
+	result1 := LessThan(1, 2)
+	result2 := LessThan(1.1, 2.2)
+	result3 := LessThan("a", "b")
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	result4 := LessThan(time1, time2)
+
+	result5 := LessThan(2, 1)
+	result6 := LessThan(1, int64(2))
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+	fmt.Println(result5)
+	fmt.Println(result6)
+
+	// Output:
+	// true
+	// true
+	// true
+	// true
+	// false
+	// false
+}
+
+func ExampleGreaterThan() {
+	result1 := GreaterThan(2, 1)
+	result2 := GreaterThan(2.2, 1.1)
+	result3 := GreaterThan("b", "a")
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	result4 := GreaterThan(time2, time1)
+
+	result5 := GreaterThan(1, 2)
+	result6 := GreaterThan(int64(2), 1)
+	result7 := GreaterThan("b", "c")
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+	fmt.Println(result5)
+	fmt.Println(result6)
+	fmt.Println(result7)
+
+	// Output:
+	// true
+	// true
+	// true
+	// true
+	// false
+	// false
+	// false
+}
+
+func ExampleLessOrEqual() {
+	result1 := LessOrEqual(1, 1)
+	result2 := LessOrEqual(1.1, 2.2)
+	result3 := LessOrEqual("a", "b")
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	result4 := LessOrEqual(time1, time2)
+
+	result5 := LessOrEqual(2, 1)
+	result6 := LessOrEqual(1, int64(2))
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+	fmt.Println(result5)
+	fmt.Println(result6)
+
+	// Output:
+	// true
+	// true
+	// true
+	// true
+	// false
+	// false
+}
+
+func ExampleGreaterOrEqual() {
+	result1 := GreaterOrEqual(1, 1)
+	result2 := GreaterOrEqual(2.2, 1.1)
+	result3 := GreaterOrEqual("b", "b")
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	result4 := GreaterOrEqual(time2, time1)
+
+	result5 := GreaterOrEqual(1, 2)
+	result6 := GreaterOrEqual(int64(2), 1)
+	result7 := GreaterOrEqual("b", "c")
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+	fmt.Println(result5)
+	fmt.Println(result6)
+	fmt.Println(result7)
+
+	// Output:
+	// true
+	// true
+	// true
+	// true
+	// false
+	// false
+	// false
+}
+
+func ExampleInDelta() {
+	result1 := InDelta(1, 1, 0)
+	result2 := InDelta(1, 2, 0)
+
+	result3 := InDelta(2.0/3.0, 0.66667, 0.001)
+	result4 := InDelta(2.0/3.0, 0.0, 0.001)
+
+	result5 := InDelta(float64(74.96)-float64(20.48), 54.48, 0)
+	result6 := InDelta(float64(74.96)-float64(20.48), 54.48, 1e-14)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+	fmt.Println(result4)
+	fmt.Println(result5)
+	fmt.Println(result6)
+
+	// Output:
+	// true
+	// false
+	// true
+	// false
+	// false
+	// true
+}

compare/compare_internal.go

@@ -0,0 +1,323 @@
+package compare
+
+import (
+	"bytes"
+	"encoding/json"
+	"reflect"
+	"time"
+
+	"github.com/duke-git/lancet/v2/convertor"
+)
+
+func compareValue(operator string, left, right any) bool {
+	leftType, rightType := reflect.TypeOf(left), reflect.TypeOf(right)
+
+	if leftType.Kind() != rightType.Kind() {
+		return false
+	}
+
+	switch leftType.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
+		reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
+		reflect.Float32, reflect.Float64, reflect.Bool, reflect.String:
+		return compareBasicValue(operator, left, right)
+
+	case reflect.Struct, reflect.Slice, reflect.Map:
+		return compareRefValue(operator, left, right, leftType.Kind())
+	}
+
+	return false
+}
+
+func compareRefValue(operator string, leftObj, rightObj any, kind reflect.Kind) bool {
+	leftVal, rightVal := reflect.ValueOf(leftObj), reflect.ValueOf(rightObj)
+
+	switch kind {
+	case reflect.Struct:
+
+		// compare time
+		if leftVal.CanConvert(timeType) {
+			timeObj1, ok := leftObj.(time.Time)
+			if !ok {
+				timeObj1 = leftVal.Convert(timeType).Interface().(time.Time)
+			}
+
+			timeObj2, ok := rightObj.(time.Time)
+			if !ok {
+				timeObj2 = rightVal.Convert(timeType).Interface().(time.Time)
+			}
+
+			return compareBasicValue(operator, timeObj1.UnixNano(), timeObj2.UnixNano())
+		}
+
+		// for other struct type, only process equal operator
+		switch operator {
+		case equal:
+			return objectsAreEqualValues(leftObj, rightObj)
+		}
+
+	case reflect.Slice:
+		// compare []byte
+		if leftVal.CanConvert(bytesType) {
+			bytesObj1, ok := leftObj.([]byte)
+			if !ok {
+				bytesObj1 = leftVal.Convert(bytesType).Interface().([]byte)
+			}
+			bytesObj2, ok := rightObj.([]byte)
+			if !ok {
+				bytesObj2 = rightVal.Convert(bytesType).Interface().([]byte)
+			}
+
+			switch operator {
+			case equal:
+				if bytes.Compare(bytesObj1, bytesObj2) == 0 {
+					return true
+				}
+			case lessThan:
+				if bytes.Compare(bytesObj1, bytesObj2) == -1 {
+					return true
+				}
+			case greaterThan:
+				if bytes.Compare(bytesObj1, bytesObj2) == 1 {
+					return true
+				}
+			case lessOrEqual:
+				if bytes.Compare(bytesObj1, bytesObj2) <= 0 {
+					return true
+				}
+			case greaterOrEqual:
+				if bytes.Compare(bytesObj1, bytesObj2) >= 0 {
+					return true
+				}
+			}
+
+		}
+
+		// for other type slice, only process equal operator
+		switch operator {
+		case equal:
+			return reflect.DeepEqual(leftObj, rightObj)
+		}
+
+	case reflect.Map:
+		// only process equal operator
+		switch operator {
+		case equal:
+			return reflect.DeepEqual(leftObj, rightObj)
+		}
+	}
+
+	return false
+}
+
+func objectsAreEqualValues(expected, actual interface{}) bool {
+	if objectsAreEqual(expected, actual) {
+		return true
+	}
+
+	actualType := reflect.TypeOf(actual)
+	if actualType == nil {
+		return false
+	}
+	expectedValue := reflect.ValueOf(expected)
+	if expectedValue.IsValid() && expectedValue.Type().ConvertibleTo(actualType) {
+		// Attempt comparison after type conversion
+		return reflect.DeepEqual(expectedValue.Convert(actualType).Interface(), actual)
+	}
+
+	return false
+}
+
+func objectsAreEqual(expected, actual interface{}) bool {
+	if expected == nil || actual == nil {
+		return expected == actual
+	}
+
+	exp, ok := expected.([]byte)
+	if !ok {
+		return reflect.DeepEqual(expected, actual)
+	}
+
+	act, ok := actual.([]byte)
+	if !ok {
+		return false
+	}
+	if exp == nil || act == nil {
+		return exp == nil && act == nil
+	}
+	return bytes.Equal(exp, act)
+}
+
+// compareBasic compare basic value: integer, float, string, bool
+func compareBasicValue(operator string, leftValue, rightValue any) bool {
+	if leftValue == nil && rightValue == nil && operator == equal {
+		return true
+	}
+
+	switch leftVal := leftValue.(type) {
+	case json.Number:
+		if left, err := leftVal.Float64(); err == nil {
+			switch rightVal := rightValue.(type) {
+			case json.Number:
+				if right, err := rightVal.Float64(); err == nil {
+					switch operator {
+					case equal:
+						if left == right {
+							return true
+						}
+					case lessThan:
+						if left < right {
+							return true
+						}
+					case greaterThan:
+						if left > right {
+							return true
+						}
+					case lessOrEqual:
+						if left <= right {
+							return true
+						}
+					case greaterOrEqual:
+						if left >= right {
+							return true
+						}
+					}
+
+				}
+
+			case float32, float64, int, uint, int8, uint8, int16, uint16, int32, uint32, int64, uint64:
+				right, err := convertor.ToFloat(rightValue)
+				if err != nil {
+					return false
+				}
+				switch operator {
+				case equal:
+					if left == right {
+						return true
+					}
+				case lessThan:
+					if left < right {
+						return true
+					}
+				case greaterThan:
+					if left > right {
+						return true
+					}
+				case lessOrEqual:
+					if left <= right {
+						return true
+					}
+				case greaterOrEqual:
+					if left >= right {
+						return true
+					}
+				}
+			}
+
+		}
+
+	case float32, float64, int, uint, int8, uint8, int16, uint16, int32, uint32, int64, uint64:
+		left, err := convertor.ToFloat(leftValue)
+		if err != nil {
+			return false
+		}
+		switch rightVal := rightValue.(type) {
+		case json.Number:
+			if right, err := rightVal.Float64(); err == nil {
+				switch operator {
+				case equal:
+					if left == right {
+						return true
+					}
+				case lessThan:
+					if left < right {
+						return true
+					}
+				case greaterThan:
+					if left > right {
+						return true
+					}
+				case lessOrEqual:
+					if left <= right {
+						return true
+					}
+				case greaterOrEqual:
+					if left >= right {
+						return true
+					}
+				}
+			}
+		case float32, float64, int, uint, int8, uint8, int16, uint16, int32, uint32, int64, uint64:
+			right, err := convertor.ToFloat(rightValue)
+			if err != nil {
+				return false
+			}
+
+			switch operator {
+			case equal:
+				if left == right {
+					return true
+				}
+			case lessThan:
+				if left < right {
+					return true
+				}
+			case greaterThan:
+				if left > right {
+					return true
+				}
+			case lessOrEqual:
+				if left <= right {
+					return true
+				}
+			case greaterOrEqual:
+				if left >= right {
+					return true
+				}
+			}
+		}
+
+	case string:
+		left := leftVal
+		switch right := rightValue.(type) {
+		case string:
+			switch operator {
+			case equal:
+				if left == right {
+					return true
+				}
+			case lessThan:
+				if left < right {
+					return true
+				}
+			case greaterThan:
+				if left > right {
+					return true
+				}
+			case lessOrEqual:
+				if left <= right {
+					return true
+				}
+			case greaterOrEqual:
+				if left >= right {
+					return true
+				}
+			}
+		}
+
+	case bool:
+		left := leftVal
+		switch right := rightValue.(type) {
+		case bool:
+			switch operator {
+			case equal:
+				if left == right {
+					return true
+				}
+			}
+		}
+
+	}
+
+	return false
+}

compare/compare_test.go

@@ -0,0 +1,156 @@
+package compare
+
+import (
+	"testing"
+	"time"
+
+	"github.com/duke-git/lancet/v2/internal"
+)
+
+func TestEqual(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestEqual")
+
+	assert.Equal(true, Equal(1, 1))
+	assert.Equal(true, Equal(int64(1), int64(1)))
+	assert.Equal(true, Equal("a", "a"))
+	assert.Equal(true, Equal(true, true))
+	assert.Equal(true, Equal([]int{1, 2, 3}, []int{1, 2, 3}))
+	assert.Equal(true, Equal(map[int]string{1: "a", 2: "b"}, map[int]string{1: "a", 2: "b"}))
+
+	assert.Equal(false, Equal(1, 2))
+	assert.Equal(false, Equal(1, int64(1)))
+	assert.Equal(false, Equal("a", "b"))
+	assert.Equal(false, Equal(true, false))
+	assert.Equal(false, Equal([]int{1, 2}, []int{1, 2, 3}))
+	assert.Equal(false, Equal(map[int]string{1: "a", 2: "b"}, map[int]string{1: "a"}))
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	time3 := time1.Add(time.Second)
+
+	assert.Equal(false, Equal(time1, time2))
+	assert.Equal(true, Equal(time2, time3))
+
+	st1 := struct {
+		A string
+		B string
+	}{
+		A: "a",
+		B: "b",
+	}
+
+	st2 := struct {
+		A string
+		B string
+	}{
+		A: "a",
+		B: "b",
+	}
+
+	st3 := struct {
+		A string
+		B string
+	}{
+		A: "a1",
+		B: "b",
+	}
+
+	assert.Equal(true, Equal(st1, st2))
+	assert.Equal(false, Equal(st1, st3))
+}
+
+func TestEqualValue(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestEqualValue")
+
+	assert.Equal(true, EqualValue(1, 1))
+	assert.Equal(true, EqualValue(int(1), int64(1)))
+	assert.Equal(true, EqualValue(1, "1"))
+
+	assert.Equal(false, EqualValue(1, "2"))
+}
+
+func TestLessThan(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestLessThan")
+
+	assert.Equal(true, LessThan(1, 2))
+	assert.Equal(true, LessThan(1.1, 2.2))
+	assert.Equal(true, LessThan("a", "b"))
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	assert.Equal(true, LessThan(time1, time2))
+
+	assert.Equal(false, LessThan(1, 1))
+	assert.Equal(false, LessThan(1, int64(1)))
+}
+
+func TestGreaterThan(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestGreaterThan")
+
+	assert.Equal(true, GreaterThan(2, 1))
+	assert.Equal(true, GreaterThan(2.2, 1.1))
+	assert.Equal(true, GreaterThan("b", "a"))
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	assert.Equal(true, GreaterThan(time2, time1))
+
+	assert.Equal(false, GreaterThan(1, 2))
+	assert.Equal(false, GreaterThan(int64(2), 1))
+	assert.Equal(false, GreaterThan("b", "c"))
+}
+
+func TestLessOrEqual(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestLessOrEqual")
+
+	assert.Equal(true, LessOrEqual(1, 2))
+	assert.Equal(true, LessOrEqual(1, 1))
+	assert.Equal(true, LessOrEqual(1.1, 2.2))
+	assert.Equal(true, LessOrEqual("a", "b"))
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	assert.Equal(true, LessOrEqual(time1, time2))
+
+	assert.Equal(false, LessOrEqual(2, 1))
+	assert.Equal(false, LessOrEqual(1, int64(2)))
+}
+
+func TestGreaterOrEqual(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestGreaterThan")
+
+	assert.Equal(true, GreaterOrEqual(2, 1))
+	assert.Equal(true, GreaterOrEqual(1, 1))
+	assert.Equal(true, GreaterOrEqual(2.2, 1.1))
+	assert.Equal(true, GreaterOrEqual("b", "b"))
+
+	time1 := time.Now()
+	time2 := time1.Add(time.Second)
+	assert.Equal(true, GreaterOrEqual(time2, time1))
+
+	assert.Equal(false, GreaterOrEqual(1, 2))
+	assert.Equal(false, GreaterOrEqual(int64(2), 1))
+	assert.Equal(false, GreaterOrEqual("b", "c"))
+}
+
+func TestInDelta(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestInDelta")
+
+	assert.Equal(true, InDelta(1, 1, 0))
+	assert.Equal(false, InDelta(1, 2, 0))
+
+	assert.Equal(true, InDelta(2.0/3.0, 0.66667, 0.001))
+	assert.Equal(false, InDelta(2.0/3.0, 0.0, 0.001))
+
+	assert.Equal(false, InDelta(float64(74.96)-float64(20.48), 54.48, 0))
+	assert.Equal(true, InDelta(float64(74.96)-float64(20.48), 54.48, 1e-14))
+	assert.Equal(false, InDelta(float64(float32(80.45)), float64(80.45), 0))
+	assert.Equal(true, InDelta(float64(float32(80.45)), float64(80.45), 1e-5))
+}

concurrency/channel.go

@@ -1,7 +1,7 @@
 // Copyright 2021 dudaodong@gmail.com. All rights reserved.
 // Use of this source code is governed by MIT license
 
-// Package concurrency contain some functions to support concurrent programming. eg, goroutine, channel, async.
+// Package concurrency contain some functions to support concurrent programming. eg, goroutine, channel.
 package concurrency
 
 import (

concurrency/channel_test.go

@@ -9,6 +9,7 @@ import (
 )
 
 func TestGenerate(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestGenerate")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -23,6 +24,7 @@ func TestGenerate(t *testing.T) {
 }
 
 func TestRepeat(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestRepeat")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -39,6 +41,7 @@ func TestRepeat(t *testing.T) {
 }
 
 func TestRepeatFn(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestRepeatFn")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -57,6 +60,7 @@ func TestRepeatFn(t *testing.T) {
 }
 
 func TestTake(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestTake")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -79,6 +83,7 @@ func TestTake(t *testing.T) {
 }
 
 func TestFanIn(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestFanIn")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -101,6 +106,7 @@ func TestFanIn(t *testing.T) {
 }
 
 func TestOr(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestOr")
 
 	sig := func(after time.Duration) <-chan any {
@@ -127,6 +133,7 @@ func TestOr(t *testing.T) {
 }
 
 func TestOrDone(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestOrDone")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -141,6 +148,7 @@ func TestOrDone(t *testing.T) {
 }
 
 func TestTee(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestTee")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -159,6 +167,7 @@ func TestTee(t *testing.T) {
 }
 
 func TestBridge(t *testing.T) {
+	t.Parallel()
 	assert := internal.NewAssert(t, "TestBridge")
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -181,7 +190,6 @@ func TestBridge(t *testing.T) {
 
 	index := 0
 	for val := range c.Bridge(ctx, genVals()) {
-		// t.Logf("%v ", val) //0 1 2 3 4 5 6 7 8 9
 		assert.Equal(index, val)
 		index++
 	}

condition/condition_test.go

@@ -11,6 +11,8 @@ import (
 type TestStruct struct{}
 
 func TestBool(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBool")
 
 	// bool
@@ -63,6 +65,8 @@ func TestBool(t *testing.T) {
 }
 
 func TestAnd(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestAnd")
 	assert.Equal(false, And(0, 1))
 	assert.Equal(false, And(0, ""))
@@ -71,6 +75,8 @@ func TestAnd(t *testing.T) {
 }
 
 func TestOr(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestOr")
 	assert.Equal(false, Or(0, ""))
 	assert.Equal(true, Or(0, 1))
@@ -79,6 +85,8 @@ func TestOr(t *testing.T) {
 }
 
 func TestXor(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestOr")
 	assert.Equal(false, Xor(0, 0))
 	assert.Equal(true, Xor(0, 1))
@@ -87,6 +95,8 @@ func TestXor(t *testing.T) {
 }
 
 func TestNor(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestNor")
 	assert.Equal(true, Nor(0, 0))
 	assert.Equal(false, Nor(0, 1))
@@ -95,6 +105,8 @@ func TestNor(t *testing.T) {
 }
 
 func TestXnor(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestXnor")
 	assert.Equal(true, Xnor(0, 0))
 	assert.Equal(false, Xnor(0, 1))
@@ -103,6 +115,8 @@ func TestXnor(t *testing.T) {
 }
 
 func TestNand(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestNand")
 	assert.Equal(true, Nand(0, 0))
 	assert.Equal(true, Nand(0, 1))
@@ -111,7 +125,10 @@ func TestNand(t *testing.T) {
 }
 
 func TestTernaryOperator(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TernaryOperator")
+
 	trueValue := "1"
 	falseValue := "0"
 

convertor/convertor.go

@@ -9,12 +9,17 @@ import (
 	"encoding/binary"
 	"encoding/gob"
 	"encoding/json"
+	"errors"
 	"fmt"
+	"io"
 	"math"
 	"reflect"
-	"regexp"
 	"strconv"
 	"strings"
+
+	"github.com/duke-git/lancet/v2/structs"
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"golang.org/x/text/transform"
 )
 
 // ToBool convert string to boolean.
@@ -234,31 +239,7 @@ func ToMap[T any, K comparable, V any](array []T, iteratee func(T) (K, V)) map[K
 // map key is specified same as struct field tag `json` value.
 // Play: https://go.dev/play/p/KYGYJqNUBOI
 func StructToMap(value any) (map[string]any, error) {
-	v := reflect.ValueOf(value)
-	t := reflect.TypeOf(value)
-
-	if t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	}
-	if t.Kind() != reflect.Struct {
-		return nil, fmt.Errorf("data type %T not support, shuld be struct or pointer to struct", value)
-	}
-
-	result := make(map[string]any)
-
-	fieldNum := t.NumField()
-	pattern := `^[A-Z]`
-	regex := regexp.MustCompile(pattern)
-	for i := 0; i < fieldNum; i++ {
-		name := t.Field(i).Name
-		tag := t.Field(i).Tag.Get("json")
-		if regex.MatchString(name) && tag != "" {
-			//result[name] = v.Field(i).Interface()
-			result[tag] = v.Field(i).Interface()
-		}
-	}
-
-	return result, nil
+	return structs.ToMap(value)
 }
 
 // MapToSlice convert map to slice based on iteratee function.
@@ -327,7 +308,7 @@ func DecodeByte(data []byte, target any) error {
 
 // DeepClone creates a deep copy of passed item.
 // can't clone unexported field of struct
-// Play: todo
+// Play: https://go.dev/play/p/j4DP5dquxnk
 func DeepClone[T any](src T) T {
 	c := cloner{
 		ptrs: map[reflect.Type]map[uintptr]reflect.Value{},
@@ -340,3 +321,76 @@ func DeepClone[T any](src T) T {
 
 	return result.Interface().(T)
 }
+
+// CopyProperties copies each field from the source into the destination. It recursively copies struct pointers and interfaces that contain struct pointers.
+// use json.Marshal/Unmarshal, so json tag should be set for fields of dst and src struct.
+// Play: https://go.dev/play/p/oZujoB5Sgg5
+func CopyProperties[T, U any](dst T, src U) error {
+	dstType, srcType := reflect.TypeOf(dst), reflect.TypeOf(src)
+
+	if dstType.Kind() != reflect.Ptr || dstType.Elem().Kind() != reflect.Struct {
+		return errors.New("CopyProperties: parameter dst should be struct pointer")
+	}
+
+	if srcType.Kind() == reflect.Ptr {
+		srcType = srcType.Elem()
+	}
+	if srcType.Kind() != reflect.Struct {
+		return errors.New("CopyProperties: parameter src should be a struct or struct pointer")
+	}
+
+	bytes, err := json.Marshal(src)
+	if err != nil {
+		return fmt.Errorf("CopyProperties: unable to marshal src: %s", err)
+	}
+	err = json.Unmarshal(bytes, dst)
+	if err != nil {
+		return fmt.Errorf("CopyProperties: unable to unmarshal into dst: %s", err)
+	}
+
+	return nil
+}
+
+// ToInterface converts reflect value to its interface type.
+// Play: https://go.dev/play/p/syqw0-WG7Xd
+func ToInterface(v reflect.Value) (value interface{}, ok bool) {
+	if v.IsValid() && v.CanInterface() {
+		return v.Interface(), true
+	}
+	switch v.Kind() {
+	case reflect.Bool:
+		return v.Bool(), true
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int(), true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint(), true
+	case reflect.Float32, reflect.Float64:
+		return v.Float(), true
+	case reflect.Complex64, reflect.Complex128:
+		return v.Complex(), true
+	case reflect.String:
+		return v.String(), true
+	case reflect.Ptr:
+		return ToInterface(v.Elem())
+	case reflect.Interface:
+		return ToInterface(v.Elem())
+	default:
+		return nil, false
+	}
+}
+
+// Utf8ToGbk convert utf8 encoding data to GBK encoding data.
+// Play: https://go.dev/play/p/9FlIaFLArIL
+func Utf8ToGbk(bs []byte) ([]byte, error) {
+	r := transform.NewReader(bytes.NewReader(bs), simplifiedchinese.GBK.NewEncoder())
+	b, err := io.ReadAll(r)
+	return b, err
+}
+
+// GbkToUtf8 convert GBK encoding data to utf8 encoding data.
+// Play: https://go.dev/play/p/OphmHCN_9u8
+func GbkToUtf8(bs []byte) ([]byte, error) {
+	r := transform.NewReader(bytes.NewReader(bs), simplifiedchinese.GBK.NewDecoder())
+	b, err := io.ReadAll(r)
+	return b, err
+}

convertor/convertor_example_test.go

@@ -2,7 +2,11 @@ package convertor
 
 import (
 	"fmt"
+	"reflect"
 	"strconv"
+	"unicode/utf8"
+
+	"github.com/duke-git/lancet/v2/validator"
 )
 
 func ExampleToBool() {
@@ -255,12 +259,12 @@ func ExampleDecodeByte() {
 
 func ExampleDeepClone() {
 	type Struct struct {
-		Str        string
-		Int        int
-		Float      float64
-		Bool       bool
-		Nil        interface{}
-		unexported string
+		Str   string
+		Int   int
+		Float float64
+		Bool  bool
+		Nil   interface{}
+		// unexported string
 	}
 
 	cases := []interface{}{
@@ -293,5 +297,97 @@ func ExampleDeepClone() {
 	// 1 false
 	// 0.1 false
 	// map[a:1 b:2] false
-	// &{test 1 0.1 true <nil> } false
+	// &{test 1 0.1 true <nil>} false
+}
+
+func ExampleCopyProperties() {
+	type Disk struct {
+		Name    string  `json:"name"`
+		Total   string  `json:"total"`
+		Used    string  `json:"used"`
+		Percent float64 `json:"percent"`
+	}
+
+	type DiskVO struct {
+		Name    string  `json:"name"`
+		Total   string  `json:"total"`
+		Used    string  `json:"used"`
+		Percent float64 `json:"percent"`
+	}
+
+	type Indicator struct {
+		Id      string    `json:"id"`
+		Ip      string    `json:"ip"`
+		UpTime  string    `json:"upTime"`
+		LoadAvg string    `json:"loadAvg"`
+		Cpu     int       `json:"cpu"`
+		Disk    []Disk    `json:"disk"`
+		Stop    chan bool `json:"-"`
+	}
+
+	type IndicatorVO struct {
+		Id      string   `json:"id"`
+		Ip      string   `json:"ip"`
+		UpTime  string   `json:"upTime"`
+		LoadAvg string   `json:"loadAvg"`
+		Cpu     int64    `json:"cpu"`
+		Disk    []DiskVO `json:"disk"`
+	}
+
+	indicator := &Indicator{Id: "001", Ip: "127.0.0.1", Cpu: 1, Disk: []Disk{
+		{Name: "disk-001", Total: "100", Used: "1", Percent: 10},
+		{Name: "disk-002", Total: "200", Used: "1", Percent: 20},
+		{Name: "disk-003", Total: "300", Used: "1", Percent: 30},
+	}}
+
+	indicatorVO := IndicatorVO{}
+
+	CopyProperties(&indicatorVO, indicator)
+
+	fmt.Println(indicatorVO.Id)
+	fmt.Println(indicatorVO.Ip)
+	fmt.Println(len(indicatorVO.Disk))
+
+	// Output:
+	// 001
+	// 127.0.0.1
+	// 3
+}
+
+func ExampleToInterface() {
+	val := reflect.ValueOf("abc")
+	iVal, ok := ToInterface(val)
+
+	fmt.Printf("%T\n", iVal)
+	fmt.Printf("%v\n", iVal)
+	fmt.Println(ok)
+
+	// Output:
+	// string
+	// abc
+	// true
+}
+
+func ExampleUtf8ToGbk() {
+	utf8Data := []byte("hello")
+	gbkData, _ := Utf8ToGbk(utf8Data)
+
+	fmt.Println(utf8.Valid(utf8Data))
+	fmt.Println(validator.IsGBK(gbkData))
+
+	// Output:
+	// true
+	// true
+}
+
+func ExampleGbkToUtf8() {
+	gbkData, _ := Utf8ToGbk([]byte("hello"))
+	utf8Data, _ := GbkToUtf8(gbkData)
+
+	fmt.Println(utf8.Valid(utf8Data))
+	fmt.Println(string(utf8Data))
+
+	// Output:
+	// true
+	// hello
 }

convertor/convertor_test.go

@@ -5,12 +5,16 @@ import (
 	"reflect"
 	"strconv"
 	"testing"
+	"unicode/utf8"
 
 	"github.com/duke-git/lancet/v2/internal"
 	"github.com/duke-git/lancet/v2/slice"
+	"github.com/duke-git/lancet/v2/validator"
 )
 
 func TestToChar(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToChar")
 
 	cases := []string{"", "abc", "1 2#3"}
@@ -25,6 +29,8 @@ func TestToChar(t *testing.T) {
 }
 
 func TestToChannel(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToChannel")
 
 	ch := ToChannel([]int{1, 2, 3})
@@ -37,6 +43,8 @@ func TestToChannel(t *testing.T) {
 }
 
 func TestToBool(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToBool")
 
 	cases := []string{"1", "true", "True", "false", "False", "0", "123", "0.0", "abc"}
@@ -49,6 +57,8 @@ func TestToBool(t *testing.T) {
 }
 
 func TestToBytes(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToBytes")
 
 	cases := []any{
@@ -75,6 +85,8 @@ func TestToBytes(t *testing.T) {
 }
 
 func TestToInt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToInt")
 
 	cases := []any{"123", "-123", 123,
@@ -91,6 +103,8 @@ func TestToInt(t *testing.T) {
 }
 
 func TestToFloat(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToFloat")
 
 	cases := []any{
@@ -109,6 +123,8 @@ func TestToFloat(t *testing.T) {
 }
 
 func TestToString(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToString")
 
 	aMap := make(map[string]int)
@@ -144,6 +160,8 @@ func TestToString(t *testing.T) {
 	}
 }
 func TestToJson(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToJson")
 
 	var aMap = map[string]int{"a": 1, "b": 2, "c": 3}
@@ -159,6 +177,8 @@ func TestToJson(t *testing.T) {
 }
 
 func TestToMap(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToMap")
 
 	type Message struct {
@@ -178,23 +198,45 @@ func TestToMap(t *testing.T) {
 }
 
 func TestStructToMap(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestStructToMap")
 
-	type People struct {
-		Name string `json:"name"`
-		age  int
-	}
-	p := People{
-		"test",
-		100,
-	}
-	pm, _ := StructToMap(p)
+	t.Run("StructToMap", func(_ *testing.T) {
+		type People struct {
+			Name string `json:"name"`
+			age  int
+		}
+		p := People{
+			"test",
+			100,
+		}
+		pm, _ := StructToMap(p)
+		var expected = map[string]any{"name": "test"}
+		assert.Equal(expected, pm)
+	})
 
-	expected := map[string]any{"name": "test"}
-	assert.Equal(expected, pm)
+	t.Run("StructToMapWithJsonAttr", func(_ *testing.T) {
+		type People struct {
+			Name  string `json:"name,omitempty"` // json tag with attribute
+			Phone string `json:"phone"`          // json tag without attribute
+			Sex   string `json:"-"`              // ignore
+			age   int    // no tag
+		}
+		p := People{
+			Phone: "1111",
+			Sex:   "male",
+			age:   100,
+		}
+		pm, _ := StructToMap(p)
+		var expected = map[string]any{"phone": "1111"}
+		assert.Equal(expected, pm)
+	})
 }
 
 func TestMapToSlice(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMapToSlice")
 
 	aMap := map[string]int{"a": 1, "b": 2, "c": 3}
@@ -209,6 +251,8 @@ func TestMapToSlice(t *testing.T) {
 }
 
 func TestColorHexToRGB(t *testing.T) {
+	t.Parallel()
+
 	colorHex := "#003366"
 	r, g, b := ColorHexToRGB(colorHex)
 	colorRGB := fmt.Sprintf("%d,%d,%d", r, g, b)
@@ -219,6 +263,8 @@ func TestColorHexToRGB(t *testing.T) {
 }
 
 func TestColorRGBToHex(t *testing.T) {
+	t.Parallel()
+
 	r := 0
 	g := 51
 	b := 102
@@ -230,6 +276,8 @@ func TestColorRGBToHex(t *testing.T) {
 }
 
 func TestToPointer(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToPointer")
 	result := ToPointer(123)
 
@@ -237,6 +285,8 @@ func TestToPointer(t *testing.T) {
 }
 
 func TestEncodeByte(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEncodeByte")
 
 	byteData, _ := EncodeByte("abc")
@@ -246,6 +296,8 @@ func TestEncodeByte(t *testing.T) {
 }
 
 func TestDecodeByte(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDecodeByte")
 
 	var obj string
@@ -256,15 +308,17 @@ func TestDecodeByte(t *testing.T) {
 }
 
 func TestDeepClone(t *testing.T) {
+	t.Parallel()
+
 	// assert := internal.NewAssert(t, "TestDeepClone")
 
 	type Struct struct {
-		Str        string
-		Int        int
-		Float      float64
-		Bool       bool
-		Nil        interface{}
-		unexported string
+		Str   string
+		Int   int
+		Float float64
+		Bool  bool
+		Nil   interface{}
+		// unexported string
 	}
 
 	cases := []interface{}{
@@ -288,7 +342,6 @@ func TestDeepClone(t *testing.T) {
 	for i, item := range cases {
 		cloned := DeepClone(item)
 
-		t.Log(cloned)
 		if &cloned == &item {
 			t.Fatalf("[TestDeepClone case #%d failed]: equal pointer", i)
 		}
@@ -298,3 +351,112 @@ func TestDeepClone(t *testing.T) {
 		}
 	}
 }
+
+func TestCopyProperties(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestCopyProperties")
+
+	type Disk struct {
+		Name    string  `json:"name"`
+		Total   string  `json:"total"`
+		Used    string  `json:"used"`
+		Percent float64 `json:"percent"`
+	}
+
+	type DiskVO struct {
+		Name    string  `json:"name"`
+		Total   string  `json:"total"`
+		Used    string  `json:"used"`
+		Percent float64 `json:"percent"`
+	}
+
+	type Indicator struct {
+		Id      string    `json:"id"`
+		Ip      string    `json:"ip"`
+		UpTime  string    `json:"upTime"`
+		LoadAvg string    `json:"loadAvg"`
+		Cpu     int       `json:"cpu"`
+		Disk    []Disk    `json:"disk"`
+		Stop    chan bool `json:"-"`
+	}
+
+	type IndicatorVO struct {
+		Id      string   `json:"id"`
+		Ip      string   `json:"ip"`
+		UpTime  string   `json:"upTime"`
+		LoadAvg string   `json:"loadAvg"`
+		Cpu     int64    `json:"cpu"`
+		Disk    []DiskVO `json:"disk"`
+	}
+
+	indicator := &Indicator{Id: "001", Ip: "127.0.0.1", Cpu: 1, Disk: []Disk{
+		{Name: "disk-001", Total: "100", Used: "1", Percent: 10},
+		{Name: "disk-002", Total: "200", Used: "1", Percent: 20},
+		{Name: "disk-003", Total: "300", Used: "1", Percent: 30},
+	}}
+
+	indicatorVO := IndicatorVO{}
+
+	err := CopyProperties(&indicatorVO, indicator)
+
+	assert.IsNil(err)
+	assert.Equal("001", indicatorVO.Id)
+	assert.Equal("127.0.0.1", indicatorVO.Ip)
+	assert.Equal(3, len(indicatorVO.Disk))
+}
+
+func TestToInterface(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestToInterface")
+
+	cases := []reflect.Value{
+		reflect.ValueOf("abc"),
+		reflect.ValueOf(int(0)), reflect.ValueOf(int8(1)), reflect.ValueOf(int16(-1)), reflect.ValueOf(int32(123)), reflect.ValueOf(int64(123)),
+		reflect.ValueOf(uint(123)), reflect.ValueOf(uint8(123)), reflect.ValueOf(uint16(123)), reflect.ValueOf(uint32(123)), reflect.ValueOf(uint64(123)),
+		reflect.ValueOf(float64(12.3)), reflect.ValueOf(float32(12.3)),
+		reflect.ValueOf(true), reflect.ValueOf(false),
+	}
+
+	expected := []interface{}{
+		"abc",
+		0, int8(1), int16(-1), int32(123), int64(123),
+		uint(123), uint8(123), uint16(123), uint32(123), uint64(123),
+		float64(12.3), float32(12.3),
+		true, false,
+	}
+
+	for i := 0; i < len(cases); i++ {
+		actual, _ := ToInterface(cases[i])
+		assert.Equal(expected[i], actual)
+	}
+
+	nilVal, ok := ToInterface(reflect.ValueOf(nil))
+	assert.EqualValues(nil, nilVal)
+	assert.Equal(false, ok)
+}
+
+func TestUtf8ToGbk(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestUtf8ToGbk")
+
+	utf8Data := []byte("hello")
+	gbkData, err := Utf8ToGbk(utf8Data)
+
+	assert.Equal(true, utf8.Valid(utf8Data))
+	assert.Equal(true, validator.IsGBK(gbkData))
+	assert.IsNil(err)
+}
+
+func TestGbkToUtf8(t *testing.T) {
+	t.Parallel()
+	assert := internal.NewAssert(t, "TestGbkToUtf8")
+
+	gbkData, err := Utf8ToGbk([]byte("hello"))
+	utf8Data, err := GbkToUtf8(gbkData)
+
+	assert.IsNil(err)
+	assert.Equal(true, utf8.Valid(utf8Data))
+	assert.Equal("hello", string(utf8Data))
+}

cryptor/basic.go

@@ -40,6 +40,30 @@ func Md5String(s string) string {
 	return hex.EncodeToString(h.Sum(nil))
 }
 
+// Md5StringWithBase64 return the md5 value of string with base64.
+// Play: https://go.dev/play/p/Lx4gH7Vdr5_y
+func Md5StringWithBase64(s string) string {
+	h := md5.New()
+	h.Write([]byte(s))
+	return base64.StdEncoding.EncodeToString(h.Sum(nil))
+}
+
+// Md5Byte return the md5 string of byte slice.
+// Play: https://go.dev/play/p/suraalH8lyC
+func Md5Byte(data []byte) string {
+	h := md5.New()
+	h.Write(data)
+	return hex.EncodeToString(h.Sum(nil))
+}
+
+// Md5ByteWithBase64 return the md5 string of byte slice with base64.
+// Play: https://go.dev/play/p/Tcb-Z7LN2ax
+func Md5ByteWithBase64(data []byte) string {
+	h := md5.New()
+	h.Write(data)
+	return base64.StdEncoding.EncodeToString(h.Sum(nil))
+}
+
 // Md5File return the md5 value of file.
 func Md5File(filename string) (string, error) {
 	if fileInfo, err := os.Stat(filename); err != nil {
@@ -74,56 +98,112 @@ func Md5File(filename string) (string, error) {
 
 // HmacMd5 return the hmac hash of string use md5.
 // Play: https://go.dev/play/p/uef0q1fz53I
-func HmacMd5(data, key string) string {
+func HmacMd5(str, key string) string {
+	h := hmac.New(md5.New, []byte(key))
+	h.Write([]byte(str))
+	return hex.EncodeToString(h.Sum([]byte("")))
+}
+
+// HmacMd5WithBase64 return the hmac hash of string use md5 with base64.
+// todo
+func HmacMd5WithBase64(data, key string) string {
 	h := hmac.New(md5.New, []byte(key))
 	h.Write([]byte(data))
-	return hex.EncodeToString(h.Sum([]byte("")))
+	return base64.StdEncoding.EncodeToString(h.Sum([]byte("")))
 }
 
 // HmacSha1 return the hmac hash of string use sha1.
 // Play: https://go.dev/play/p/1UI4oQ4WXKM
-func HmacSha1(data, key string) string {
+func HmacSha1(str, key string) string {
 	h := hmac.New(sha1.New, []byte(key))
-	h.Write([]byte(data))
+	h.Write([]byte(str))
 	return hex.EncodeToString(h.Sum([]byte("")))
 }
 
+// HmacSha1WithBase64 return the hmac hash of string use sha1 with base64.
+// Play: https://go.dev/play/p/47JmmGrnF7B
+func HmacSha1WithBase64(str, key string) string {
+	h := hmac.New(sha1.New, []byte(key))
+	h.Write([]byte(str))
+	return base64.StdEncoding.EncodeToString(h.Sum([]byte("")))
+}
+
 // HmacSha256 return the hmac hash of string use sha256.
 // Play: https://go.dev/play/p/HhpwXxFhhC0
-func HmacSha256(data, key string) string {
+func HmacSha256(str, key string) string {
 	h := hmac.New(sha256.New, []byte(key))
-	h.Write([]byte(data))
+	h.Write([]byte(str))
 	return hex.EncodeToString(h.Sum([]byte("")))
 }
 
+// HmacSha256WithBase64 return the hmac hash of string use sha256 with base64.
+// Play: https://go.dev/play/p/EKbkUvPTLwO
+func HmacSha256WithBase64(str, key string) string {
+	h := hmac.New(sha256.New, []byte(key))
+	h.Write([]byte(str))
+	return base64.StdEncoding.EncodeToString(h.Sum([]byte("")))
+}
+
 // HmacSha512 return the hmac hash of string use sha512.
 // Play: https://go.dev/play/p/59Od6m4A0Ud
-func HmacSha512(data, key string) string {
+func HmacSha512(str, key string) string {
 	h := hmac.New(sha512.New, []byte(key))
-	h.Write([]byte(data))
+	h.Write([]byte(str))
 	return hex.EncodeToString(h.Sum([]byte("")))
 }
 
+// HmacSha512WithBase64 return the hmac hash of string use sha512 with base64.
+// Play: https://go.dev/play/p/c6dSe3E2ydU
+func HmacSha512WithBase64(str, key string) string {
+	h := hmac.New(sha512.New, []byte(key))
+	h.Write([]byte(str))
+	return base64.StdEncoding.EncodeToString(h.Sum([]byte("")))
+}
+
 // Sha1 return the sha1 value (SHA-1 hash algorithm) of string.
 // Play: https://go.dev/play/p/_m_uoD1deMT
-func Sha1(data string) string {
+func Sha1(str string) string {
 	sha1 := sha1.New()
-	sha1.Write([]byte(data))
+	sha1.Write([]byte(str))
 	return hex.EncodeToString(sha1.Sum([]byte("")))
 }
 
+// Sha1WithBase64 return the sha1 value (SHA-1 hash algorithm) of base64 string.
+// Play: https://go.dev/play/p/fSyx-Gl2l2-
+func Sha1WithBase64(str string) string {
+	sha1 := sha1.New()
+	sha1.Write([]byte(str))
+	return base64.StdEncoding.EncodeToString(sha1.Sum([]byte("")))
+}
+
 // Sha256 return the sha256 value (SHA256 hash algorithm) of string.
 // Play: https://go.dev/play/p/tU9tfBMIAr1
-func Sha256(data string) string {
+func Sha256(str string) string {
 	sha256 := sha256.New()
-	sha256.Write([]byte(data))
+	sha256.Write([]byte(str))
 	return hex.EncodeToString(sha256.Sum([]byte("")))
 }
 
+// Sha256WithBase64 return the sha256 value (SHA256 hash algorithm) of base64 string.
+// Play: https://go.dev/play/p/85IXJHIal1k
+func Sha256WithBase64(str string) string {
+	sha256 := sha256.New()
+	sha256.Write([]byte(str))
+	return base64.StdEncoding.EncodeToString(sha256.Sum([]byte("")))
+}
+
 // Sha512 return the sha512 value (SHA512 hash algorithm) of string.
 // Play: https://go.dev/play/p/3WsvLYZxsHa
-func Sha512(data string) string {
+func Sha512(str string) string {
 	sha512 := sha512.New()
-	sha512.Write([]byte(data))
+	sha512.Write([]byte(str))
 	return hex.EncodeToString(sha512.Sum([]byte("")))
 }
+
+// Sha512WithBase64 return the sha512 value (SHA512 hash algorithm) of base64 string.
+// Play: https://go.dev/play/p/q_fY2rA-k5I
+func Sha512WithBase64(str string) string {
+	sha512 := sha512.New()
+	sha512.Write([]byte(str))
+	return base64.StdEncoding.EncodeToString(sha512.Sum([]byte("")))
+}

cryptor/basic_test.go

@@ -7,21 +7,51 @@ import (
 )
 
 func TestBase64StdEncode(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBase64StdEncode")
 	assert.Equal("aGVsbG8gd29ybGQ=", Base64StdEncode("hello world"))
 }
 
 func TestBase64StdDecode(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBase64StdDecode")
 	assert.Equal("hello world", Base64StdDecode("aGVsbG8gd29ybGQ="))
 }
 
 func TestMd5String(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMd5String")
 	assert.Equal("5d41402abc4b2a76b9719d911017c592", Md5String("hello"))
 }
 
+func TestMd5StringWithBase64(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestMd5StringWithBase64")
+	assert.Equal("XUFAKrxLKna5cZ2REBfFkg==", Md5StringWithBase64("hello"))
+}
+
+func TestMd5Byte(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestMd5Byte")
+	data := []byte{'a'}
+	assert.Equal("0cc175b9c0f1b6a831c399e269772661", Md5Byte(data))
+}
+
+func TestMd5ByteWithBase64(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestMd5ByteWithBase64")
+	assert.Equal("XUFAKrxLKna5cZ2REBfFkg==", Md5ByteWithBase64([]byte("hello")))
+}
+
 func TestMd5File(t *testing.T) {
+	t.Parallel()
+
 	fileMd5, err := Md5File("./basic.go")
 	assert := internal.NewAssert(t, "TestMd5File")
 	assert.IsNotNil(fileMd5)
@@ -29,11 +59,22 @@ func TestMd5File(t *testing.T) {
 }
 
 func TestHmacMd5(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestHmacMd5")
 	assert.Equal("5f4c9faaff0a1ad3007d9ddc06abe36d", HmacMd5("hello world", "12345"))
 }
 
+func TestHmacMd5WithBase64(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestHmacMd5WithBase64")
+	assert.Equal("6DQwbquJLYclJdSRinpjmg==", HmacMd5WithBase64("hello", "12345"))
+}
+
 func TestHmacSha1(t *testing.T) {
+	t.Parallel()
+
 	s := "hello world"
 	key := "12345"
 	hmacSha1 := HmacSha1(s, key)
@@ -43,17 +84,45 @@ func TestHmacSha1(t *testing.T) {
 	assert.Equal(expected, hmacSha1)
 }
 
-func TestHmacSha256(t *testing.T) {
-	s := "hello world"
+func TestHmacSha1WithBase64(t *testing.T) {
+	t.Parallel()
+
+	s := "hello"
 	key := "12345"
-	hmacSha256 := HmacSha256(s, key)
+	hmacSha1 := HmacSha1WithBase64(s, key)
+	expected := "XGqdsMzLkuNu0DI/0Jt/k23prOA="
+
+	assert := internal.NewAssert(t, "TestHmacSha1")
+	assert.Equal(expected, hmacSha1)
+}
+
+func TestHmacSha256(t *testing.T) {
+	t.Parallel()
+
+	str := "hello world"
+	key := "12345"
+	hmacSha256 := HmacSha256(str, key)
 	expected := "9dce2609f2d67d41f74c7f9efc8ccd44370d41ad2de52982627588dfe7289ab8"
 
 	assert := internal.NewAssert(t, "TestHmacSha256")
 	assert.Equal(expected, hmacSha256)
 }
 
+func TestHmacSha256WithBase64(t *testing.T) {
+	t.Parallel()
+
+	str := "hello"
+	key := "12345"
+	hms := HmacSha256WithBase64(str, key)
+	expected := "MVu5PE6YmGK6Ccti4F1zpfN2yzbw14btqwwyDQWf3nU="
+
+	assert := internal.NewAssert(t, "TestHmacSha256WithBase64")
+	assert.Equal(expected, hms)
+}
+
 func TestHmacSha512(t *testing.T) {
+	t.Parallel()
+
 	s := "hello world"
 	key := "12345"
 	hmacSha512 := HmacSha512(s, key)
@@ -63,7 +132,21 @@ func TestHmacSha512(t *testing.T) {
 	assert.Equal(expected, hmacSha512)
 }
 
+func TestHmacSha512WithBase64(t *testing.T) {
+	t.Parallel()
+
+	str := "hello"
+	key := "12345"
+	hms := HmacSha512WithBase64(str, key)
+	expected := "3Y8SkKndI9NU4lJtmi6c6M///dN8syCADRxsE9Lvw2Mog3ahlsVFja9T+OGqa0Wm2FYwPVwKIGS/+XhYYdSM/A=="
+
+	assert := internal.NewAssert(t, "TestHmacSha512WithBase64")
+	assert.Equal(expected, hms)
+}
+
 func TestSha1(t *testing.T) {
+	t.Parallel()
+
 	s := "hello world"
 	sha1 := Sha1(s)
 	expected := "2aae6c35c94fcfb415dbe95f408b9ce91ee846ed"
@@ -72,7 +155,19 @@ func TestSha1(t *testing.T) {
 	assert.Equal(expected, sha1)
 }
 
+func TestSha1WithBase64(t *testing.T) {
+	t.Parallel()
+
+	str := Sha1WithBase64("hello")
+	expected := "qvTGHdzF6KLavt4PO0gs2a6pQ00="
+
+	assert := internal.NewAssert(t, "TestSha1WithBase64")
+	assert.Equal(expected, str)
+}
+
 func TestSha256(t *testing.T) {
+	t.Parallel()
+
 	s := "hello world"
 	sha256 := Sha256(s)
 	expected := "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
@@ -81,7 +176,19 @@ func TestSha256(t *testing.T) {
 	assert.Equal(expected, sha256)
 }
 
+func TestSha256WithBase64(t *testing.T) {
+	t.Parallel()
+
+	str := Sha256WithBase64("hello")
+	expected := "LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ="
+
+	assert := internal.NewAssert(t, "TestSha256WithBase64")
+	assert.Equal(expected, str)
+}
+
 func TestSha512(t *testing.T) {
+	t.Parallel()
+
 	s := "hello world"
 	sha512 := Sha512(s)
 	expected := "309ecc489c12d6eb4cc40f50c902f2b4d0ed77ee511a7c7a9bcd3ca86d4cd86f989dd35bc5ff499670da34255b45b0cfd830e81f605dcf7dc5542e93ae9cd76f"
@@ -89,3 +196,13 @@ func TestSha512(t *testing.T) {
 	assert := internal.NewAssert(t, "TestSha512")
 	assert.Equal(expected, sha512)
 }
+
+func TestSha512WithBase64(t *testing.T) {
+	t.Parallel()
+
+	str := Sha512WithBase64("hello")
+	expected := "m3HSJL1i83hdltRq0+o9czGb+8KJDKra4t/3JRlnPKcjI8PZm6XBHXx6zG4UuMXaDEZjR1wuXDre9G9zvN7AQw=="
+
+	assert := internal.NewAssert(t, "TestSha512WithBase64")
+	assert.Equal(expected, str)
+}

cryptor/crypto_example_test.go

@@ -322,89 +322,165 @@ func ExampleHmacMd5() {
 	key := "12345"
 
 	hms := HmacMd5(str, key)
-
 	fmt.Println(hms)
 
 	// Output:
 	// e834306eab892d872525d4918a7a639a
 }
 
+func ExampleHmacMd5WithBase64() {
+	str := "hello"
+	key := "12345"
+
+	hms := HmacMd5WithBase64(str, key)
+	fmt.Println(hms)
+
+	// Output:
+	// 6DQwbquJLYclJdSRinpjmg==
+}
+
 func ExampleHmacSha1() {
 	str := "hello"
 	key := "12345"
 
 	hms := HmacSha1(str, key)
-
 	fmt.Println(hms)
 
 	// Output:
 	// 5c6a9db0cccb92e36ed0323fd09b7f936de9ace0
 }
 
+func ExampleHmacSha1WithBase64() {
+	str := "hello"
+	key := "12345"
+
+	hms := HmacSha1WithBase64(str, key)
+	fmt.Println(hms)
+
+	// Output:
+	// XGqdsMzLkuNu0DI/0Jt/k23prOA=
+}
+
 func ExampleHmacSha256() {
 	str := "hello"
 	key := "12345"
 
 	hms := HmacSha256(str, key)
-
 	fmt.Println(hms)
 
 	// Output:
 	// 315bb93c4e989862ba09cb62e05d73a5f376cb36f0d786edab0c320d059fde75
 }
 
+func ExampleHmacSha256WithBase64() {
+	str := "hello"
+	key := "12345"
+
+	hms := HmacSha256WithBase64(str, key)
+	fmt.Println(hms)
+
+	// Output:
+	// MVu5PE6YmGK6Ccti4F1zpfN2yzbw14btqwwyDQWf3nU=
+}
+
 func ExampleHmacSha512() {
 	str := "hello"
 	key := "12345"
 
 	hms := HmacSha512(str, key)
-
 	fmt.Println(hms)
 
 	// Output:
 	// dd8f1290a9dd23d354e2526d9a2e9ce8cffffdd37cb320800d1c6c13d2efc363288376a196c5458daf53f8e1aa6b45a6d856303d5c0a2064bff9785861d48cfc
 }
 
-func ExampleMd5String() {
+func ExampleHmacSha512WithBase64() {
 	str := "hello"
+	key := "12345"
 
-	md5Str := Md5String(str)
+	hms := HmacSha512WithBase64(str, key)
+	fmt.Println(hms)
 
+	// Output:
+	// 3Y8SkKndI9NU4lJtmi6c6M///dN8syCADRxsE9Lvw2Mog3ahlsVFja9T+OGqa0Wm2FYwPVwKIGS/+XhYYdSM/A==
+}
+
+func ExampleMd5String() {
+	md5Str := Md5String("hello")
 	fmt.Println(md5Str)
 
 	// Output:
 	// 5d41402abc4b2a76b9719d911017c592
 }
 
+func ExampleMd5StringWithBase64() {
+	md5Str := Md5StringWithBase64("hello")
+	fmt.Println(md5Str)
+
+	// Output:
+	// XUFAKrxLKna5cZ2REBfFkg==
+}
+
+func ExampleMd5Byte() {
+	md5Str := Md5Byte([]byte{'a'})
+	fmt.Println(md5Str)
+
+	// Output:
+	// 0cc175b9c0f1b6a831c399e269772661
+}
+
+func ExampleMd5ByteWithBase64() {
+	md5Str := Md5ByteWithBase64([]byte("hello"))
+	fmt.Println(md5Str)
+
+	// Output:
+	// XUFAKrxLKna5cZ2REBfFkg==
+}
+
 func ExampleSha1() {
-	str := "hello"
-
-	result := Sha1(str)
-
+	result := Sha1("hello")
 	fmt.Println(result)
 
 	// Output:
 	// aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d
 }
 
+func ExampleSha1WithBase64() {
+	result := Sha1WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// qvTGHdzF6KLavt4PO0gs2a6pQ00=
+}
+
 func ExampleSha256() {
-	str := "hello"
-
-	result := Sha256(str)
-
+	result := Sha256("hello")
 	fmt.Println(result)
 
 	// Output:
 	// 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
 }
 
+func ExampleSha256WithBase64() {
+	result := Sha256WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ=
+}
+
 func ExampleSha512() {
-	str := "hello"
-
-	result := Sha512(str)
-
+	result := Sha512("hello")
 	fmt.Println(result)
 
 	// Output:
 	// 9b71d224bd62f3785d96d46ad3ea3d73319bfbc2890caadae2dff72519673ca72323c3d99ba5c11d7c7acc6e14b8c5da0c4663475c2e5c3adef46f73bcdec043
 }
+
+func ExampleSha512WithBase64() {
+	result := Sha512WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// m3HSJL1i83hdltRq0+o9czGb+8KJDKra4t/3JRlnPKcjI8PZm6XBHXx6zG4UuMXaDEZjR1wuXDre9G9zvN7AQw==
+}

cryptor/crypto_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestAesEcbEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefghijklmnop"
 
@@ -18,6 +20,8 @@ func TestAesEcbEncrypt(t *testing.T) {
 }
 
 func TestAesCbcEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefghijklmnop"
 
@@ -29,6 +33,8 @@ func TestAesCbcEncrypt(t *testing.T) {
 }
 
 func TestAesCtrCrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefghijklmnop"
 
@@ -40,6 +46,8 @@ func TestAesCtrCrypt(t *testing.T) {
 }
 
 func TestAesCfbEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefghijklmnop"
 
@@ -51,6 +59,8 @@ func TestAesCfbEncrypt(t *testing.T) {
 }
 
 func TestAesOfbEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefghijklmnop"
 
@@ -62,6 +72,8 @@ func TestAesOfbEncrypt(t *testing.T) {
 }
 
 func TestDesEcbEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefgh"
 
@@ -73,6 +85,8 @@ func TestDesEcbEncrypt(t *testing.T) {
 }
 
 func TestDesCbcEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefgh"
 
@@ -84,6 +98,8 @@ func TestDesCbcEncrypt(t *testing.T) {
 }
 
 func TestDesCtrCrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefgh"
 
@@ -95,6 +111,8 @@ func TestDesCtrCrypt(t *testing.T) {
 }
 
 func TestDesCfbEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefgh"
 
@@ -106,6 +124,8 @@ func TestDesCfbEncrypt(t *testing.T) {
 }
 
 func TestDesOfbEncrypt(t *testing.T) {
+	t.Parallel()
+
 	data := "hello world"
 	key := "abcdefgh"
 
@@ -117,6 +137,8 @@ func TestDesOfbEncrypt(t *testing.T) {
 }
 
 func TestRsaEncrypt(t *testing.T) {
+	t.Parallel()
+
 	err := GenerateRsaKey(4096, "rsa_private.pem", "rsa_public.pem")
 	if err != nil {
 		t.FailNow()

datastructure/hashmap/hashmap.go

@@ -1,12 +1,13 @@
 // Copyright 2021 dudaodong@gmail.com. All rights reserved.
 // Use of this source code is governed by MIT license
 
-// Package datastructure implements some data structure. eg. list, linklist, stack, queue, tree, graph.
+// Package datastructure implements some data structure. hashmap structure.
 package datastructure
 
 import (
 	"fmt"
 	"hash/fnv"
+	"reflect"
 )
 
 var defaultMapCapacity uint64 = 1 << 10
@@ -17,7 +18,7 @@ type mapNode struct {
 	next  *mapNode
 }
 
-//HashMap implements a hash map
+// HashMap implements a hash map
 type HashMap struct {
 	capacity uint64
 	size     uint64
@@ -45,13 +46,24 @@ func NewHashMapWithCapacity(size, capacity uint64) *HashMap {
 func (hm *HashMap) Get(key any) any {
 	hashValue := hm.hash(key)
 	node := hm.table[hashValue]
-	if node != nil {
-		return node.value
+	for node != nil {
+		if reflect.DeepEqual(node.key, key) {
+			return node.value
+		}
+		node = node.next
 	}
-
 	return nil
 }
 
+// GetOrDefault return the value of given key in hashmap, if not found return default value
+func (hm *HashMap) GetOrDefault(key any, defaultValue any) any {
+	value := hm.Get(key)
+	if value == nil {
+		return defaultValue
+	}
+	return value
+}
+
 // Put new key value in hashmap
 func (hm *HashMap) Put(key any, value any) {
 	hm.putValue(hm.hash(key), key, value)
@@ -90,7 +102,13 @@ func (hm *HashMap) Delete(key any) {
 // Contains checks if given key is in hashmap or not
 func (hm *HashMap) Contains(key any) bool {
 	node := hm.table[hm.hash(key)]
-	return node != nil
+	for node != nil {
+		if reflect.DeepEqual(node.key, key) {
+			return true
+		}
+		node = node.next
+	}
+	return false
 }
 
 // Iterate executes iteratee funcation for every key and value pair of hashmap (random order)

datastructure/hashmap/hashmap_test.go

@@ -32,6 +32,8 @@ func TestHashMap_Resize(t *testing.T) {
 }
 
 func TestHashMap_Delete(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestHashMap_Delete")
 
 	hm := NewHashMap()
@@ -44,6 +46,8 @@ func TestHashMap_Delete(t *testing.T) {
 }
 
 func TestHashMap_Contains(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestHashMap_Contains")
 
 	hm := NewHashMap()
@@ -54,6 +58,8 @@ func TestHashMap_Contains(t *testing.T) {
 }
 
 func TestHashMap_KeysValues(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestHashMap_KeysValues")
 
 	hm := NewHashMap()
@@ -64,8 +70,38 @@ func TestHashMap_KeysValues(t *testing.T) {
 
 	keys := hm.Keys()
 	values := hm.Values()
-	t.Log(keys, values)
 
 	assert.Equal(3, len(values))
 	assert.Equal(3, len(keys))
 }
+
+func TestHashMap_Keys(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestHashMap_Keys")
+
+	hm := NewHashMap()
+
+	hm.Put("a", 1)
+	hm.Put("b", 2)
+	hm.Put("c", 3)
+
+	keys := hm.Keys()
+
+	assert.Equal(3, len(keys))
+}
+
+func TestHashMap_GetOrDefault(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestHashMap_GetOrDefault")
+
+	hm := NewHashMap()
+
+	hm.Put("a", 1)
+	hm.Put("b", 2)
+	hm.Put("c", 3)
+
+	assert.Equal(1, hm.GetOrDefault("a", 5))
+	assert.Equal(5, hm.GetOrDefault("d", 5))
+}

datastructure/heap/maxheap.go

@@ -1,7 +1,7 @@
 // Copyright 2021 dudaodong@gmail.com. All rights reserved.
 // Use of this source code is governed by MIT license
 
-// Package datastructure implements some data structure. eg. list, linklist, stack, queue, tree, graph.
+// Package datastructure implements some data structure. MaxHeap is a binary max heap.
 package datastructure
 
 import (

datastructure/heap/maxheap_test.go

@@ -21,6 +21,8 @@ func (c *intComparator) Compare(v1, v2 any) int {
 }
 
 func TestMaxHeap_BuildMaxHeap(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMaxHeap_BuildMaxHeap")
 
 	values := []int{6, 5, 2, 4, 7, 10, 12, 1, 3, 8, 9, 11}
@@ -33,6 +35,8 @@ func TestMaxHeap_BuildMaxHeap(t *testing.T) {
 }
 
 func TestMaxHeap_Push(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMaxHeap_Push")
 
 	heap := NewMaxHeap[int](&intComparator{})
@@ -51,6 +55,8 @@ func TestMaxHeap_Push(t *testing.T) {
 }
 
 func TestMaxHeap_Pop(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMaxHeap_Pop")
 
 	heap := NewMaxHeap[int](&intComparator{})
@@ -70,6 +76,8 @@ func TestMaxHeap_Pop(t *testing.T) {
 }
 
 func TestMaxHeap_Peek(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMaxHeap_Peek")
 
 	heap := NewMaxHeap[int](&intComparator{})

datastructure/link/doublylink.go

@@ -1,3 +1,7 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure. Link structure contains SinglyLink and DoublyLink.
 package datastructure
 
 import (

datastructure/link/doublylink_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestDoublyLink_InsertAtFirst(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_InsertAtFirst")
 
 	link := NewDoublyLink[int]()
@@ -22,6 +24,8 @@ func TestDoublyLink_InsertAtFirst(t *testing.T) {
 }
 
 func TestDoublyLink_InsertAtTail(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_InsertAtTail")
 
 	link := NewDoublyLink[int]()
@@ -37,12 +41,12 @@ func TestDoublyLink_InsertAtTail(t *testing.T) {
 }
 
 func TestDoublyLink_InsertAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_InsertAt")
 
 	link := NewDoublyLink[int]()
-
 	link.InsertAt(1, 1) //do nothing
-
 	link.InsertAt(0, 1)
 	link.InsertAt(1, 2)
 	link.InsertAt(2, 4)
@@ -55,6 +59,8 @@ func TestDoublyLink_InsertAt(t *testing.T) {
 }
 
 func TestDoublyLink_DeleteAtHead(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_DeleteAtHead")
 
 	link := NewDoublyLink[int]()
@@ -74,6 +80,8 @@ func TestDoublyLink_DeleteAtHead(t *testing.T) {
 }
 
 func TestDoublyLink_DeleteAtTail(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_DeleteAtTail")
 
 	link := NewDoublyLink[int]()
@@ -93,6 +101,8 @@ func TestDoublyLink_DeleteAtTail(t *testing.T) {
 }
 
 func TestDoublyLink_DeleteAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_DeleteAt")
 
 	link := NewDoublyLink[int]()
@@ -116,6 +126,8 @@ func TestDoublyLink_DeleteAt(t *testing.T) {
 }
 
 func TestDoublyLink_Reverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_Reverse")
 
 	link := NewDoublyLink[int]()
@@ -130,6 +142,8 @@ func TestDoublyLink_Reverse(t *testing.T) {
 }
 
 func TestDoublyLink_GetMiddleNode(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_GetMiddleNode")
 
 	link := NewDoublyLink[int]()
@@ -149,10 +163,11 @@ func TestDoublyLink_GetMiddleNode(t *testing.T) {
 }
 
 func TestDoublyLink_Clear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDoublyLink_Clear")
 
 	link := NewDoublyLink[int]()
-
 	assert.Equal(true, link.IsEmpty())
 	assert.Equal(0, link.Size())
 

datastructure/link/singlylink.go

@@ -1,3 +1,7 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure. Link structure contains SinglyLink and DoublyLink.
 package datastructure
 
 import (

datastructure/link/singlylink_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestSinglyLink_InsertAtFirst(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_InsertAtFirst")
 
 	link := NewSinglyLink[int]()
@@ -22,6 +24,8 @@ func TestSinglyLink_InsertAtFirst(t *testing.T) {
 }
 
 func TestSinglyLink_InsertAtTail(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_InsertAtTail")
 
 	link := NewSinglyLink[int]()
@@ -37,6 +41,8 @@ func TestSinglyLink_InsertAtTail(t *testing.T) {
 }
 
 func TestSinglyLink_InsertAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_InsertAt")
 
 	link := NewSinglyLink[int]()
@@ -57,6 +63,8 @@ func TestSinglyLink_InsertAt(t *testing.T) {
 }
 
 func TestSinglyLink_DeleteAtHead(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_DeleteAtHead")
 
 	link := NewSinglyLink[int]()
@@ -78,10 +86,11 @@ func TestSinglyLink_DeleteAtHead(t *testing.T) {
 }
 
 func TestSinglyLink_DeleteAtTail(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_DeleteAtTail")
 
 	link := NewSinglyLink[int]()
-
 	link.InsertAtTail(1)
 	link.InsertAtTail(2)
 	link.InsertAtTail(3)
@@ -96,10 +105,11 @@ func TestSinglyLink_DeleteAtTail(t *testing.T) {
 }
 
 func TestSinglyLink_DeleteValue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_DeleteValue")
 
 	link := NewSinglyLink[int]()
-
 	link.InsertAtTail(1)
 	link.InsertAtTail(2)
 	link.InsertAtTail(2)
@@ -114,10 +124,11 @@ func TestSinglyLink_DeleteValue(t *testing.T) {
 }
 
 func TestSinglyLink_DeleteAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_DeleteAt")
 
 	link := NewSinglyLink[int]()
-
 	link.InsertAtTail(1)
 	link.InsertAtTail(2)
 	link.InsertAtTail(3)
@@ -136,6 +147,8 @@ func TestSinglyLink_DeleteAt(t *testing.T) {
 }
 
 func TestSinglyLink_Reverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_Reverse")
 
 	link := NewSinglyLink[int]()
@@ -149,6 +162,8 @@ func TestSinglyLink_Reverse(t *testing.T) {
 }
 
 func TestSinglyLink_GetMiddleNode(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSinglyLink_GetMiddleNode")
 
 	link := NewSinglyLink[int]()
@@ -163,6 +178,7 @@ func TestSinglyLink_GetMiddleNode(t *testing.T) {
 	link.InsertAtTail(5)
 	link.InsertAtTail(6)
 	link.InsertAtTail(7)
+
 	middle2 := link.GetMiddleNode()
 	assert.Equal(4, middle2.Value)
 }

datastructure/list/copyonwritelist.go

@@ -0,0 +1,350 @@
+package datastructure
+
+import (
+	"reflect"
+	"sort"
+	"sync"
+)
+
+type CopyOnWriteList[T any] struct {
+	data []T
+	lock sync.Locker
+}
+
+// NewCopyOnWriteList Creates an empty list.
+func NewCopyOnWriteList[T any](data []T) *CopyOnWriteList[T] {
+	return &CopyOnWriteList[T]{data: data, lock: &sync.RWMutex{}}
+}
+
+func (c *CopyOnWriteList[T]) getList() []T {
+	return c.data
+}
+func (c *CopyOnWriteList[T]) setList(data []T) {
+	c.data = data
+}
+
+// Size returns the number of elements in this list.
+func (c *CopyOnWriteList[T]) Size() int {
+	return len(c.getList())
+}
+
+// IsEmpty returns true if this list contains no elements.
+func (c *CopyOnWriteList[T]) IsEmpty() bool {
+	return c.Size() == 0
+}
+
+// Contain returns true if this list contains the specified element.
+func (c *CopyOnWriteList[T]) Contain(e T) bool {
+	list := c.getList()
+	return indexOf(e, list, 0, c.Size()) >= 0
+}
+
+// ValueOf returns the index of the first occurrence of the specified element in this list, or null if this list does not contain the element.
+func (c *CopyOnWriteList[T]) ValueOf(index int) (*T, bool) {
+	list := c.getList()
+	if index < 0 || index >= len(c.data) {
+		return nil, false
+	}
+	return get(list, index), true
+}
+
+// IndexOf returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
+func (c *CopyOnWriteList[T]) IndexOf(e T) int {
+	list := c.getList()
+	return indexOf(e, list, 0, c.Size())
+}
+
+// indexOf returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
+// start the start position of the search (inclusive)
+// end the end position of the search (exclusive)
+func indexOf[T any](o T, e []T, start int, end int) int {
+	if start >= end {
+		return -1
+	}
+	for i := start; i < end; i++ {
+		if reflect.DeepEqual(e[i], o) {
+			return i
+		}
+	}
+	return -1
+}
+
+// LastIndexOf returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
+func (c *CopyOnWriteList[T]) LastIndexOf(e T) int {
+	list := c.getList()
+	return lastIndexOf(e, list, 0, c.Size())
+}
+
+// lastIndexOf returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
+// start the start position of the search (inclusive)
+// end the end position of the search (exclusive)
+func lastIndexOf[T any](o T, e []T, start int, end int) int {
+	if start >= end {
+		return -1
+	}
+	for i := end - 1; i >= start; i-- {
+		if reflect.DeepEqual(e[i], o) {
+			return i
+		}
+	}
+	return -1
+}
+
+// get returns the element at the specified position in this list.
+func get[T any](o []T, index int) *T {
+	return &o[index]
+}
+
+// Get returns the element at the specified position in this list.
+func (c *CopyOnWriteList[T]) Get(index int) *T {
+	list := c.getList()
+	if index < 0 || index >= len(list) {
+		return nil
+	}
+	return get(list, index)
+}
+
+func (c *CopyOnWriteList[T]) set(index int, e T) (oldValue *T) {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+	list := c.getList()
+	oldValue = get(list, index)
+
+	if reflect.DeepEqual(oldValue, e) {
+		c.setList(list)
+	} else {
+		newList := make([]T, len(list))
+		copy(newList, list)
+		newList[index] = e
+		c.setList(newList)
+	}
+	return
+}
+
+// Set replaces the element at the specified position in this list with the specified element.
+func (c *CopyOnWriteList[T]) Set(index int, e T) (oldValue *T, ok bool) {
+	list := c.getList()
+	if index < 0 || index >= len(list) {
+		return oldValue, false
+	}
+	return c.set(index, e), true
+}
+
+// Add appends the specified element to the end of this list.
+func (c *CopyOnWriteList[T]) Add(e T) bool {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	newList := make([]T, len(list)+1)
+	copy(newList, list)
+	newList[len(list)] = e
+	c.setList(newList)
+	return true
+}
+
+// AddAll appends all the elements in the specified collection to the end of this list
+func (c *CopyOnWriteList[T]) AddAll(e []T) bool {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	newList := make([]T, len(list)+len(e))
+	copy(newList, list)
+	copy(newList[len(list):], e)
+	c.setList(newList)
+	return true
+}
+
+// AddByIndex inserts the specified element at the specified position in this list.
+func (c *CopyOnWriteList[T]) AddByIndex(index int, e T) bool {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	length := len(list)
+	if index < 0 || index > length {
+		return false
+	}
+	var newList []T
+	var numMove = length - index
+	if numMove == 0 {
+		newList = make([]T, length+1)
+		copy(newList, list)
+	} else {
+		newList = make([]T, length+1)
+		copy(newList, list[:index])
+		copy(newList[index+1:], list[index:])
+	}
+	newList[index] = e
+	c.setList(newList)
+	return true
+}
+
+// delete removes the element at the specified position in this list.
+func (c *CopyOnWriteList[T]) delete(index int) *T {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	length := len(list)
+
+	oldValue := get(list, index)
+	numMove := length - index - 1
+	var newList []T
+	if numMove == 0 {
+		newList = make([]T, length-1)
+		copy(newList, list[:index])
+	} else {
+		newList = make([]T, length-1)
+		copy(newList, list[:index])
+		copy(newList[index:], list[index+1:])
+	}
+
+	c.setList(newList)
+	return oldValue
+}
+
+// DeleteAt removes the element at the specified position in this list.
+func (c *CopyOnWriteList[T]) DeleteAt(index int) (*T, bool) {
+	list := c.getList()
+	if index < 0 || index >= len(list) {
+		return nil, false
+	}
+	return c.delete(index), true
+}
+
+// DeleteBy removes the first occurrence of the specified element from this list, if it is present.
+func (c *CopyOnWriteList[T]) DeleteBy(o T) (*T, bool) {
+	list := c.getList()
+	index := indexOf(o, list, 0, len(list))
+	if index == -1 {
+		return nil, false
+	}
+	return c.delete(index), true
+}
+
+// DeleteRange removes from this list all the elements whose index is between fromIndex, inclusive, and toIndex, exclusive.
+// left close and right open
+func (c *CopyOnWriteList[T]) DeleteRange(start int, end int) {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	length := len(list)
+	if start < 0 || end > length || start > end {
+		return
+	}
+	var newList []T
+	numMove := length - end
+	if numMove == 0 {
+		newList = make([]T, length-(end-start))
+		copy(newList, list[:start])
+	} else {
+		newList = make([]T, length-(end-start))
+		copy(newList, list[:start])
+		copy(newList[start:], list[end:])
+	}
+	c.setList(newList)
+}
+
+// DeleteIf removes all the elements of this collection that satisfy the given predicate.
+func (c *CopyOnWriteList[T]) DeleteIf(f func(T) bool) {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	length := len(list)
+	var newList []T
+	for i := 0; i < length; i++ {
+		if !f(list[i]) {
+			newList = append(newList, list[i])
+		}
+	}
+	c.setList(newList)
+}
+
+// Equal returns true if the specified object is equal to this list.
+func (c *CopyOnWriteList[T]) Equal(other *[]T) bool {
+	if other == nil {
+		return false
+	}
+	if c.Size() != len(*other) {
+		return false
+	}
+	list := c.getList()
+	otherList := NewCopyOnWriteList(*other).getList()
+	for i := 0; i < len(list); i++ {
+		if !reflect.DeepEqual(list[i], otherList[i]) {
+			return false
+		}
+	}
+	return true
+}
+
+// Clear removes all the elements from this list.
+func (c *CopyOnWriteList[T]) Clear() {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	list = make([]T, 0)
+	c.setList(list)
+}
+
+// Merge a tow list to one, change the list
+func (c *CopyOnWriteList[T]) Merge(other []T) {
+	lock := c.lock
+	lock.Lock()
+	defer lock.Unlock()
+
+	list := c.getList()
+	list = append(list, other...)
+	c.setList(list)
+}
+
+// ForEach performs the given action for each element of the Iterable until all elements have been processed
+// or the action throws an exception.
+func (c *CopyOnWriteList[T]) ForEach(f func(T)) {
+	list := c.getList()
+	for i := 0; i < len(list); i++ {
+		f(list[i])
+	}
+
+}
+
+// Sort sorts this list according to the order induced by the specified Comparator.
+func (c *CopyOnWriteList[T]) Sort(compare func(o1 T, o2 T) bool) {
+	lock := c.lock
+	lock.Lock()
+	list := c.getList()
+
+	sort.Slice(list, func(i, j int) bool {
+		return compare(list[i], list[j])
+	})
+
+	c.setList(list)
+}
+
+func (c *CopyOnWriteList[T]) SubList(start int, end int) (newList []T) {
+	lock := c.lock
+	lock.Lock()
+	list := c.getList()
+	length := len(list)
+	defer lock.Unlock()
+	if start < 0 || end > length || start > end {
+		return []T{}
+	}
+	newList = make([]T, end-start)
+	copy(newList, list[start:end])
+	c.setList(newList)
+	return
+}

datastructure/list/copyonwritelist_test.go

@@ -0,0 +1,235 @@
+package datastructure
+
+import (
+	"github.com/duke-git/lancet/v2/internal"
+	"testing"
+)
+
+func TestCopyOnWriteList_ValueOf(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+
+	assert := internal.NewAssert(t, "CopyOnWriteList_IndexOf")
+	of, ok := list.ValueOf(3)
+	assert.Equal(4, *of)
+	assert.Equal(true, ok)
+
+	_, ok = list.ValueOf(6)
+	assert.Equal(false, ok)
+}
+
+func TestCopyOnWriteList_Contain(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Contains")
+	assert.Equal(true, list.Contain(3))
+}
+
+func TestCopyOnWriteList_IsEmpty(t *testing.T) {
+	list := NewCopyOnWriteList([]int{})
+	assert := internal.NewAssert(t, "CopyOnWriteList_IsEmpty")
+	assert.Equal(true, list.IsEmpty())
+}
+
+func TestCopyOnWriteList_Size(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_size")
+	assert.Equal(5, list.Size())
+}
+
+func TestCopyOnWriteList_GetList(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_GetList")
+	assert.Equal([]int{1, 2, 3, 4, 5}, list.getList())
+}
+
+func TestCopyOnWriteList_Get(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Get")
+	i := list.Get(2)
+	assert.Equal(3, *i)
+}
+
+func TestCopyOnWriteList_Set(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Set")
+	list.Set(2, 6)
+	assert.Equal(6, list.getList()[2])
+
+	list = NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	list.Set(0, 6)
+	assert.Equal(6, list.getList()[0])
+
+	list = NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	list.Set(0, 1)
+	assert.Equal(1, list.getList()[0])
+}
+
+func TestCopyOnWriteList_Add(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Add")
+	list.Add(6)
+	assert.Equal([]int{1, 2, 3, 4, 5, 6}, list.getList())
+}
+
+func TestCopyOnWriteList_AddAll(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_AddAll")
+	list.AddAll([]int{6, 7, 8})
+	assert.Equal([]int{1, 2, 3, 4, 5, 6, 7, 8}, list.getList())
+}
+
+func TestCopyOnWriteList_AddByIndex(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_AddByIndex")
+	list.AddByIndex(2, 6)
+	assert.Equal([]int{1, 2, 6, 3, 4, 5}, list.getList())
+
+	list = NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	list.AddByIndex(0, 6)
+	assert.Equal([]int{6, 1, 2, 3, 4, 5}, list.getList())
+
+	list = NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	list.AddByIndex(5, 6)
+	assert.Equal([]int{1, 2, 3, 4, 5, 6}, list.getList())
+}
+
+func TestCopyOnWriteList_DeleteAt2(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_RemoveByIndex")
+	list.DeleteAt(2)
+	assert.Equal([]int{1, 2, 4, 5}, list.getList())
+
+	list = NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	list.DeleteAt(4)
+	assert.Equal([]int{1, 2, 3, 4}, list.getList())
+}
+
+func TestCopyOnWriteList_RemoveByValue(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_RemoveByValue")
+	list.DeleteBy(3)
+	assert.Equal([]int{1, 2, 4, 5}, list.getList())
+}
+
+func TestCopyOnWriteList_DeleteRange(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	assert := internal.NewAssert(t, "CopyOnWriteList_RemoveRange")
+	list.DeleteRange(1, 3)
+	assert.Equal([]int{1, 4, 5}, list.getList())
+
+	list = NewCopyOnWriteList([]int{1, 2, 3, 4, 5})
+	list.DeleteRange(0, 5)
+	assert.Equal([]int{}, list.getList())
+}
+
+func TestCopyOnWriteList_LastIndexOf(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3})
+	assert := internal.NewAssert(t, "CopyOnWriteList_LastIndexOf")
+	assert.Equal(5, list.LastIndexOf(3))
+}
+
+func TestCopyOnWriteList_DeleteAt(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3})
+	assert := internal.NewAssert(t, "CopyOnWriteList_DeleteAt")
+	list.DeleteAt(2)
+	assert.Equal([]int{1, 2, 4, 5, 3}, list.getList())
+}
+
+func TestCopyOnWriteList_DeleteBy(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3})
+	assert := internal.NewAssert(t, "CopyOnWriteList_DeleteBy")
+	list.DeleteBy(3)
+	assert.Equal([]int{1, 2, 4, 5, 3}, list.getList())
+}
+
+func TestCopyOnWriteList_DeleteIf(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3, 6})
+	assert := internal.NewAssert(t, "CopyOnWriteList_DeleteIf")
+
+	list.DeleteIf(func(i int) bool {
+		return i%2 == 0
+	})
+
+	assert.Equal([]int{1, 3, 5, 3}, list.getList())
+}
+
+func TestCopyOnWriteList_Equal(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3, 6})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Equal")
+
+	assert.Equal(true, list.Equal(&[]int{1, 2, 3, 4, 5, 3, 6}))
+}
+
+func TestCopyOnWriteList_ForEach(t *testing.T) {
+	testList := make([]int, 0)
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3, 6})
+	assert := internal.NewAssert(t, "CopyOnWriteList_ForEach")
+
+	list.ForEach(func(i int) {
+		testList = append(testList, i)
+	})
+	assert.Equal([]int{1, 2, 3, 4, 5, 3, 6}, testList)
+
+	list.ForEach(func(i int) {
+		list.Add(i)
+	})
+	assert.Equal([]int{1, 2, 3, 4, 5, 3, 6, 1, 2, 3, 4, 5, 3, 6}, list.getList())
+}
+
+func TestCopyOnWriteList_Clear(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 2, 3, 4, 5, 3, 6})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Clear")
+
+	list.Clear()
+	assert.Equal([]int{}, list.getList())
+}
+
+func TestCopyOnWriteList_Merge(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 3, 5, 7, 9})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Merge")
+
+	list.Merge([]int{2, 4, 6, 8, 10})
+	assert.Equal([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10}, list.getList())
+
+}
+
+func TestCopyOnWriteList_Sort(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+	assert := internal.NewAssert(t, "CopyOnWriteList_Sort")
+
+	list.Sort(func(i, j int) bool {
+		return i < j
+	})
+	assert.Equal([]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, list.getList())
+}
+
+func TestCopyOnWriteList_IndexOf(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+	assert := internal.NewAssert(t, "CopyOnWriteList_IndexOf")
+
+	assert.Equal(0, list.IndexOf(1))
+	assert.Equal(9, list.IndexOf(10))
+	assert.Equal(-1, list.IndexOf(11))
+}
+
+func TestCopyOnWriteList_SubList(t *testing.T) {
+	list := NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+
+	assert := internal.NewAssert(t, "CopyOnWriteList_SubList")
+
+	list = NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+	subList := list.SubList(1, 3)
+	assert.Equal([]int{3, 5}, subList)
+
+	list = NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+	subList = list.SubList(1, 1)
+	assert.Equal([]int{}, subList)
+
+	list = NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+	assert.Equal(10, list.Size())
+	subList = list.SubList(1, 10)
+	assert.Equal([]int{3, 5, 7, 9, 2, 4, 6, 8, 10}, subList)
+
+	list = NewCopyOnWriteList([]int{1, 3, 5, 7, 9, 2, 4, 6, 8, 10})
+	subList = list.SubList(11, 1)
+	assert.Equal([]int{}, subList)
+}

datastructure/list/list.go

@@ -1,7 +1,7 @@
 // Copyright 2021 dudaodong@gmail.com. All rights reserved.
 // Use of this source code is governed by MIT license
 
-// Package datastructure implements some data structure. eg. list, linklist, stack, queue, tree, graph.
+// Package datastructure contains some data structure. list is a linear table, implemented with slice.
 package datastructure
 
 import (
@@ -271,7 +271,7 @@ func (l *List[T]) Reverse() {
 	}
 }
 
-// Unique remove duplicate items in list.
+// Unique delete duplicate items in list.
 func (l *List[T]) Unique() {
 	data := l.data
 	size := len(data)
@@ -294,7 +294,7 @@ func (l *List[T]) Unique() {
 	l.data = uniqueData
 }
 
-// Union creates a new list contain all element in list l and other, remove duplicate element.
+// Union creates a new list contain all element in list l and other, delete duplicate element.
 func (l *List[T]) Union(other *List[T]) *List[T] {
 	result := NewList([]T{})
 

datastructure/list/list_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestListData(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestListData")
 
 	list := NewList([]int{1, 2, 3})
@@ -14,6 +16,8 @@ func TestListData(t *testing.T) {
 }
 
 func TestValueOf(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestValueOf")
 
 	list := NewList([]int{1, 2, 3})
@@ -26,6 +30,8 @@ func TestValueOf(t *testing.T) {
 }
 
 func TestIndexOf(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIndexOf")
 
 	list := NewList([]int{1, 2, 3})
@@ -37,6 +43,8 @@ func TestIndexOf(t *testing.T) {
 }
 
 func TestIndexOfFunc(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIndexOf")
 
 	list := NewList([]int{1, 2, 3})
@@ -48,6 +56,8 @@ func TestIndexOfFunc(t *testing.T) {
 }
 
 func TestLastIndexOf(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIndexOf")
 
 	list := NewList([]int{1, 2, 3, 3, 3, 3, 4, 5, 6, 9})
@@ -65,6 +75,8 @@ func TestLastIndexOf(t *testing.T) {
 }
 
 func TestLastIndexOfFunc(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIndexOf")
 
 	list := NewList([]int{1, 2, 3, 3, 3, 3, 4, 5, 6, 9})
@@ -82,6 +94,8 @@ func TestLastIndexOfFunc(t *testing.T) {
 }
 
 func TestContain(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestContain")
 
 	list := NewList([]int{1, 2, 3})
@@ -90,6 +104,8 @@ func TestContain(t *testing.T) {
 }
 
 func TestPush(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestPush")
 
 	list := NewList([]int{1, 2, 3})
@@ -99,6 +115,8 @@ func TestPush(t *testing.T) {
 }
 
 func TestInsertAtFirst(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestInsertAtFirst")
 
 	list := NewList([]int{1, 2, 3})
@@ -108,6 +126,8 @@ func TestInsertAtFirst(t *testing.T) {
 }
 
 func TestInsertAtLast(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestInsertAtLast")
 
 	list := NewList([]int{1, 2, 3})
@@ -117,6 +137,8 @@ func TestInsertAtLast(t *testing.T) {
 }
 
 func TestInsertAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestInsertAt")
 
 	list := NewList([]int{1, 2, 3})
@@ -135,6 +157,8 @@ func TestInsertAt(t *testing.T) {
 }
 
 func TestPopFirst(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestPopFirst")
 
 	list := NewList([]int{1, 2, 3})
@@ -150,6 +174,8 @@ func TestPopFirst(t *testing.T) {
 }
 
 func TestPopLast(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestPopLast")
 
 	list := NewList([]int{1, 2, 3})
@@ -165,6 +191,8 @@ func TestPopLast(t *testing.T) {
 }
 
 func TestDeleteAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDeleteAt")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -183,6 +211,8 @@ func TestDeleteAt(t *testing.T) {
 }
 
 func TestUpdateAt(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestUpdateAt")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -201,6 +231,8 @@ func TestUpdateAt(t *testing.T) {
 }
 
 func TestEqual(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEqual")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -212,6 +244,8 @@ func TestEqual(t *testing.T) {
 }
 
 func TestIsEmpty(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIsEmpty")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -222,6 +256,8 @@ func TestIsEmpty(t *testing.T) {
 }
 
 func TestIsClear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIsClear")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -232,6 +268,8 @@ func TestIsClear(t *testing.T) {
 }
 
 func TestClone(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestClone")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -241,6 +279,8 @@ func TestClone(t *testing.T) {
 }
 
 func TestMerge(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestMerge")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -252,6 +292,8 @@ func TestMerge(t *testing.T) {
 }
 
 func TestSize(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSize")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -262,6 +304,8 @@ func TestSize(t *testing.T) {
 }
 
 func TestCap(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCap")
 
 	data := make([]int, 0, 100)
@@ -274,6 +318,8 @@ func TestCap(t *testing.T) {
 }
 
 func TestSwap(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSwap")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -285,6 +331,8 @@ func TestSwap(t *testing.T) {
 }
 
 func TestReverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestReverse")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -296,6 +344,8 @@ func TestReverse(t *testing.T) {
 }
 
 func TestUnique(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestUnique")
 
 	list := NewList([]int{1, 2, 2, 3, 4})
@@ -307,6 +357,8 @@ func TestUnique(t *testing.T) {
 }
 
 func TestUnion(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestUnion")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -318,6 +370,8 @@ func TestUnion(t *testing.T) {
 }
 
 func TestIntersection(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIntersection")
 
 	list1 := NewList([]int{1, 2, 3, 4})
@@ -329,6 +383,8 @@ func TestIntersection(t *testing.T) {
 }
 
 func TestDifference(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDifference")
 
 	list1 := NewList([]int{1, 2, 3})
@@ -340,6 +396,8 @@ func TestDifference(t *testing.T) {
 }
 
 func TestSymmetricDifference(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSymmetricDifference")
 
 	list1 := NewList([]int{1, 2, 3})
@@ -351,6 +409,8 @@ func TestSymmetricDifference(t *testing.T) {
 }
 
 func TestSubSlice(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSubSlice")
 
 	list := NewList([]int{1, 2, 3, 4, 5, 8})
@@ -367,6 +427,8 @@ func BenchmarkSubSlice(b *testing.B) {
 }
 
 func TestDeleteIf(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDeleteIf")
 
 	list := NewList([]int{1, 1, 1, 1, 2, 3, 1, 1, 4, 1, 1, 1, 1, 1, 1})
@@ -381,10 +443,11 @@ func TestDeleteIf(t *testing.T) {
 }
 
 func TestForEach(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestForEach")
 
 	list := NewList([]int{1, 2, 3, 4})
-
 	rs := make([]int, 0)
 	list.ForEach(func(i int) {
 		rs = append(rs, i)
@@ -394,6 +457,8 @@ func TestForEach(t *testing.T) {
 }
 
 func TestRetainAll(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestRetainAll")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -414,6 +479,8 @@ func TestRetainAll(t *testing.T) {
 }
 
 func TestDeleteAll(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestDeleteAll")
 
 	list := NewList([]int{1, 2, 3, 4})
@@ -433,10 +500,11 @@ func TestDeleteAll(t *testing.T) {
 }
 
 func TestIterator(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestIterator")
 
 	list := NewList([]int{1, 2, 3, 4})
-
 	iterator := list.Iterator()
 
 	rs := make([]int, 0)
@@ -449,14 +517,15 @@ func TestIterator(t *testing.T) {
 }
 
 func TestListToMap(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "ListToMap")
 
 	list := NewList([]int{1, 2, 3, 4})
-
 	result := ListToMap(list, func(n int) (int, bool) {
 		return n, n > 1
 	})
-	expected := map[int]bool{1: false, 2: true, 3: true, 4: true}
 
+	expected := map[int]bool{1: false, 2: true, 3: true, 4: true}
 	assert.Equal(expected, result)
 }

datastructure/node.go

@@ -1,7 +1,7 @@
 // Copyright 2021 dudaodong@gmail.com. All rights reserved.
 // Use of this source code is governed by MIT license
 
-// Package datastructure implements some data structure. eg. list, linklist, stack, queue, tree, graph.
+// Package datastructure implements some data structure.
 package datastructure
 
 // LinkNode is a linkedlist node, which have a Value and Pre points to previous node, Next points to a next node of the link.

datastructure/queue/arrayqueue.go

@@ -1,3 +1,8 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure.
+// Queue structure contains ArrayQueue, LinkedQueue, CircularQueue, and PriorityQueue.
 package datastructure
 
 import (

datastructure/queue/arrayqueue_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestArrayQueue_Enqueue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_Enqueue")
 
 	queue := NewArrayQueue[int](5)
@@ -14,15 +16,16 @@ func TestArrayQueue_Enqueue(t *testing.T) {
 	queue.Enqueue(2)
 	queue.Enqueue(3)
 
-	expected := []int{1, 2, 3}
 	data := queue.Data()
 	size := queue.Size()
 
-	assert.Equal(expected, data)
+	assert.Equal([]int{1, 2, 3}, data)
 	assert.Equal(3, size)
 }
 
 func TestArrayQueue_Dequeue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_Dequeue")
 
 	queue := NewArrayQueue[int](4)
@@ -38,6 +41,8 @@ func TestArrayQueue_Dequeue(t *testing.T) {
 }
 
 func TestArrayQueue_Front(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_Front")
 
 	queue := NewArrayQueue[int](4)
@@ -52,6 +57,8 @@ func TestArrayQueue_Front(t *testing.T) {
 }
 
 func TestArrayQueue_Back(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_Back")
 
 	queue := NewArrayQueue[int](4)
@@ -66,6 +73,8 @@ func TestArrayQueue_Back(t *testing.T) {
 }
 
 func TestArrayQueue_Contain(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_Contain")
 
 	queue := NewArrayQueue[int](4)
@@ -78,6 +87,8 @@ func TestArrayQueue_Contain(t *testing.T) {
 }
 
 func TestArrayQueue_Clear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_Clear")
 
 	queue := NewArrayQueue[int](4)
@@ -95,6 +106,8 @@ func TestArrayQueue_Clear(t *testing.T) {
 }
 
 func TestArrayQueue_IsFull(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayQueue_IsFull")
 
 	queue := NewArrayQueue[int](3)

datastructure/queue/circularqueue.go

@@ -1,3 +1,8 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure.
+// Queue structure contains ArrayQueue, LinkedQueue, CircularQueue, and PriorityQueue.
 package datastructure
 
 import (

datastructure/queue/circularqueue_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestCircularQueue_Enqueue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_Enqueue")
 
 	queue := NewCircularQueue[int](6)
@@ -34,6 +36,8 @@ func TestCircularQueue_Enqueue(t *testing.T) {
 }
 
 func TestCircularQueue_Dequeue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_DeQueue")
 
 	queue := NewCircularQueue[int](4)
@@ -60,6 +64,8 @@ func TestCircularQueue_Dequeue(t *testing.T) {
 }
 
 func TestCircularQueue_Front(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_Front")
 
 	queue := NewCircularQueue[int](6)
@@ -80,6 +86,8 @@ func TestCircularQueue_Front(t *testing.T) {
 }
 
 func TestCircularQueue_Back(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_Back")
 
 	queue := NewCircularQueue[int](3)
@@ -103,6 +111,8 @@ func TestCircularQueue_Back(t *testing.T) {
 }
 
 func TestCircularQueue_Contain(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_Contain")
 
 	queue := NewCircularQueue[int](2)
@@ -114,6 +124,8 @@ func TestCircularQueue_Contain(t *testing.T) {
 }
 
 func TestCircularQueue_Clear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_Clear")
 
 	queue := NewCircularQueue[int](3)
@@ -132,6 +144,8 @@ func TestCircularQueue_Clear(t *testing.T) {
 }
 
 func TestCircularQueue_Data(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestCircularQueue_Data")
 
 	queue := NewCircularQueue[int](3)

datastructure/queue/linkedqueue.go

@@ -1,3 +1,8 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure.
+// Queue structure contains ArrayQueue, LinkedQueue, CircularQueue, and PriorityQueue.
 package datastructure
 
 import (

datastructure/queue/linkedqueue_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestLinkedQueue_Enqueue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedQueue_Enqueue")
 
 	queue := NewLinkedQueue[int]()
@@ -19,6 +21,8 @@ func TestLinkedQueue_Enqueue(t *testing.T) {
 }
 
 func TestLinkedQueue_Dequeue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedQueue_DeQueue")
 
 	queue := NewLinkedQueue[int]()
@@ -35,6 +39,8 @@ func TestLinkedQueue_Dequeue(t *testing.T) {
 }
 
 func TestLinkedQueue_Front(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedQueue_Front")
 
 	queue := NewLinkedQueue[int]()
@@ -51,6 +57,8 @@ func TestLinkedQueue_Front(t *testing.T) {
 }
 
 func TestLinkedQueue_Back(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedQueue_Back")
 
 	queue := NewLinkedQueue[int]()
@@ -67,6 +75,8 @@ func TestLinkedQueue_Back(t *testing.T) {
 }
 
 func TestLinkedQueue_Clear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedQueue_Back")
 
 	queue := NewLinkedQueue[int]()
@@ -82,10 +92,11 @@ func TestLinkedQueue_Clear(t *testing.T) {
 }
 
 func TestLinkedQueue_Contain(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedQueue_Contain")
 
 	queue := NewLinkedQueue[int]()
-
 	queue.Enqueue(1)
 	queue.Enqueue(2)
 	queue.Enqueue(3)

datastructure/queue/priorityqueue.go

@@ -1,3 +1,8 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure.
+// Queue structure contains ArrayQueue, LinkedQueue, CircularQueue, and PriorityQueue.
 package datastructure
 
 import (

datastructure/queue/priorityqueue_test.go

@@ -20,6 +20,8 @@ func (c *intComparator) Compare(v1, v2 any) int {
 	return 0
 }
 func TestPriorityQueue_Enqueue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestPriorityQueue_Enqueue")
 
 	comparator := &intComparator{}
@@ -45,6 +47,8 @@ func TestPriorityQueue_Enqueue(t *testing.T) {
 }
 
 func TestPriorityQueue_Dequeue(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestPriorityQueue_Dequeue")
 
 	comparator := &intComparator{}

datastructure/set/set.go

@@ -1,6 +1,10 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure. Set is a data container, like slice, but element of set is not duplicate.
 package datastructure
 
-// Set is a data container, like slice, but element of set is not duplicate
+// Set is a data container, like slice, but element of set is not duplicate.
 type Set[T comparable] map[T]struct{}
 
 // NewSet return a instance of set
@@ -171,3 +175,25 @@ func (s Set[T]) Minus(comparedSet Set[T]) Set[T] {
 
 	return set
 }
+
+// EachWithBreak iterates over elements of a set and invokes function for each element,
+// when iteratee return false, will break the for each loop.
+func (s Set[T]) EachWithBreak(iteratee func(item T) bool) {
+	for _, v := range s.Values() {
+		if !iteratee(v) {
+			break
+		}
+	}
+}
+
+// Pop delete the top element of set then return it, if set is empty, return nil-value of T and false.
+func (s Set[T]) Pop() (v T, ok bool) {
+	if len(s) > 0 {
+		items := s.Values()
+		item := items[len(s)-1]
+		delete(s, item)
+		return item, true
+	}
+
+	return v, false
+}

datastructure/set/set_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestSet_NewSetFromSlice(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_NewSetFromSlice")
 
 	s1 := NewSetFromSlice([]int{1, 2, 2, 3})
@@ -20,17 +22,21 @@ func TestSet_NewSetFromSlice(t *testing.T) {
 }
 
 func TestSet_Add(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Add")
 
 	set := NewSet[int]()
 	set.Add(1, 2, 3)
 
-	expected := NewSet(1, 2, 3)
+	cmpSet := NewSet(1, 2, 3)
 
-	assert.Equal(true, set.Equal(expected))
+	assert.Equal(true, set.Equal(cmpSet))
 }
 
 func TestSet_AddIfNotExist(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_AddIfNotExist")
 
 	set := NewSet[int]()
@@ -42,6 +48,8 @@ func TestSet_AddIfNotExist(t *testing.T) {
 }
 
 func TestSet_AddIfNotExistBy(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_AddIfNotExistBy")
 
 	set := NewSet[int]()
@@ -63,6 +71,8 @@ func TestSet_AddIfNotExistBy(t *testing.T) {
 }
 
 func TestSet_Contain(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Contain")
 
 	set := NewSet[int]()
@@ -73,6 +83,8 @@ func TestSet_Contain(t *testing.T) {
 }
 
 func TestSet_ContainAll(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_ContainAll")
 
 	set1 := NewSet(1, 2, 3)
@@ -84,6 +96,8 @@ func TestSet_ContainAll(t *testing.T) {
 }
 
 func TestSet_Clone(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Clone")
 
 	set1 := NewSet(1, 2, 3)
@@ -94,18 +108,20 @@ func TestSet_Clone(t *testing.T) {
 }
 
 func TestSet_Delete(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Delete")
 
 	set := NewSet[int]()
 	set.Add(1, 2, 3)
 	set.Delete(3)
 
-	expected := NewSet(1, 2)
-
-	assert.Equal(true, set.Equal(expected))
+	assert.Equal(true, set.Equal(NewSet(1, 2)))
 }
 
 func TestSet_Equal(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Equal")
 
 	set1 := NewSet(1, 2, 3)
@@ -117,6 +133,8 @@ func TestSet_Equal(t *testing.T) {
 }
 
 func TestSet_Iterate(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Iterate")
 
 	set := NewSet(1, 2, 3)
@@ -129,6 +147,8 @@ func TestSet_Iterate(t *testing.T) {
 }
 
 func TestSet_IsEmpty(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_IsEmpty")
 
 	set := NewSet[int]()
@@ -136,6 +156,8 @@ func TestSet_IsEmpty(t *testing.T) {
 }
 
 func TestSet_Size(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Size")
 
 	set := NewSet(1, 2, 3)
@@ -143,6 +165,8 @@ func TestSet_Size(t *testing.T) {
 }
 
 func TestSet_Values(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Values")
 
 	set := NewSet(1, 2, 3)
@@ -152,28 +176,33 @@ func TestSet_Values(t *testing.T) {
 }
 
 func TestSet_Union(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Union")
 
 	set1 := NewSet(1, 2, 3)
 	set2 := NewSet(2, 3, 4, 5)
-	expected := NewSet(1, 2, 3, 4, 5)
+
 	unionSet := set1.Union(set2)
 
-	assert.Equal(expected, unionSet)
+	assert.Equal(NewSet(1, 2, 3, 4, 5), unionSet)
 }
 
 func TestSet_Intersection(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Intersection")
 
 	set1 := NewSet(1, 2, 3)
 	set2 := NewSet(2, 3, 4, 5)
-	expected := NewSet(2, 3)
 	intersectionSet := set1.Intersection(set2)
 
-	assert.Equal(expected, intersectionSet)
+	assert.Equal(NewSet(2, 3), intersectionSet)
 }
 
 func TestSet_SymmetricDifference(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_SymmetricDifference")
 
 	set1 := NewSet(1, 2, 3)
@@ -183,6 +212,8 @@ func TestSet_SymmetricDifference(t *testing.T) {
 }
 
 func TestSet_Minus(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestSet_Minus")
 
 	set1 := NewSet(1, 2, 3)
@@ -192,3 +223,40 @@ func TestSet_Minus(t *testing.T) {
 	assert.Equal(NewSet(1), set1.Minus(set2))
 	assert.Equal(NewSet(4, 5), set2.Minus(set3))
 }
+
+func TestEachWithBreak(t *testing.T) {
+	// s := NewSet(1, 2, 3, 4, 5)
+
+	// var sum int
+
+	// s.EachWithBreak(func(n int) bool {
+	// 	if n > 3 {
+	// 		return false
+	// 	}
+	// 	sum += n
+	// 	return true
+	// })
+
+	// assert := internal.NewAssert(t, "TestEachWithBreak")
+	// assert.Equal(6, sum)
+}
+
+// func TestPop(t *testing.T) {
+// 	assert := internal.NewAssert(t, "TestPop")
+
+// 	s := NewSet[int]()
+
+// 	val, ok := s.Pop()
+// 	assert.Equal(0, val)
+// 	assert.Equal(false, ok)
+
+// 	s.Add(1)
+// 	s.Add(2)
+// 	s.Add(3)
+
+// 	// s = NewSet(1, 2, 3, 4, 5)
+
+// 	val, ok = s.Pop()
+// 	assert.Equal(3, val)
+// 	assert.Equal(true, ok)
+// }

datastructure/stack/arraystack.go

@@ -1,3 +1,7 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure. Stack structure contains ArrayStack and LinkedStack.
 package datastructure
 
 import "errors"

datastructure/stack/arraystack_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestArrayStack_Push(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayStack_Push")
 
 	stack := NewArrayStack[int]()
@@ -14,15 +16,16 @@ func TestArrayStack_Push(t *testing.T) {
 	stack.Push(2)
 	stack.Push(3)
 
-	expected := []int{3, 2, 1}
 	values := stack.Data()
 	length := stack.Size()
 
-	assert.Equal(expected, values)
+	assert.Equal([]int{3, 2, 1}, values)
 	assert.Equal(3, length)
 }
 
 func TestArrayStack_Pop(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayStack_Pop")
 
 	stack := NewArrayStack[int]()
@@ -37,11 +40,12 @@ func TestArrayStack_Pop(t *testing.T) {
 	assert.IsNil(err)
 	assert.Equal(3, *topItem)
 
-	expected := []int{2, 1}
-	assert.Equal(expected, stack.Data())
+	assert.Equal([]int{2, 1}, stack.Data())
 }
 
 func TestArrayStack_Peak(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayStack_Peak")
 
 	stack := NewArrayStack[int]()
@@ -56,11 +60,12 @@ func TestArrayStack_Peak(t *testing.T) {
 	assert.IsNil(err)
 	assert.Equal(3, *topItem)
 
-	expected := []int{3, 2, 1}
-	assert.Equal(expected, stack.Data())
+	assert.Equal([]int{3, 2, 1}, stack.Data())
 }
 
 func TestArrayStack_Clear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestArrayStack_Clear")
 
 	stack := NewArrayStack[int]()

datastructure/stack/linkedstack.go

@@ -1,3 +1,7 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure. Stack structure contains ArrayStack and LinkedStack.
 package datastructure
 
 import (

datastructure/stack/linkedstack_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestLinkedStack_Push(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedStack_Push")
 
 	stack := NewLinkedStack[int]()
@@ -14,15 +16,16 @@ func TestLinkedStack_Push(t *testing.T) {
 	stack.Push(2)
 	stack.Push(3)
 
-	expected := []int{3, 2, 1}
 	values := stack.Data()
 	size := stack.Size()
 
-	assert.Equal(expected, values)
+	assert.Equal([]int{3, 2, 1}, values)
 	assert.Equal(3, size)
 }
 
 func TestLinkedStack_Pop(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedStack_Pop")
 
 	stack := NewLinkedStack[int]()
@@ -37,12 +40,13 @@ func TestLinkedStack_Pop(t *testing.T) {
 	assert.IsNil(err)
 	assert.Equal(3, *topItem)
 
-	expected := []int{2, 1}
 	stack.Print()
-	assert.Equal(expected, stack.Data())
+	assert.Equal([]int{2, 1}, stack.Data())
 }
 
 func TestLinkedStack_Peak(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedStack_Peak")
 
 	stack := NewLinkedStack[int]()
@@ -57,11 +61,12 @@ func TestLinkedStack_Peak(t *testing.T) {
 	assert.IsNil(err)
 	assert.Equal(3, *topItem)
 
-	expected := []int{3, 2, 1}
-	assert.Equal(expected, stack.Data())
+	assert.Equal([]int{3, 2, 1}, stack.Data())
 }
 
 func TestLinkedStack_Empty(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestLinkedStack_Empty")
 
 	stack := NewLinkedStack[int]()

datastructure/tree/bstree.go

@@ -1,3 +1,7 @@
+// Copyright 2021 dudaodong@gmail.com. All rights reserved.
+// Use of this source code is governed by MIT license
+
+// Package datastructure contains some data structure. BSTree is binary search tree.
 package datastructure
 
 import (

datastructure/tree/bstree_test.go

@@ -20,16 +20,9 @@ func (c *intComparator) Compare(v1, v2 any) int {
 	return 0
 }
 
-func TestBSTree_Insert(t *testing.T) {
-	bstree := NewBSTree(6, &intComparator{})
-
-	bstree.Insert(7)
-	bstree.Insert(5)
-	bstree.Insert(2)
-	bstree.Insert(4)
-}
-
 func TestBSTree_PreOrderTraverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_PreOrderTraverse")
 
 	bstree := NewBSTree(6, &intComparator{})
@@ -40,11 +33,12 @@ func TestBSTree_PreOrderTraverse(t *testing.T) {
 	bstree.Insert(4)
 
 	acturl := bstree.PreOrderTraverse()
-	t.Log(acturl)
 	assert.Equal([]int{6, 5, 2, 4, 7}, acturl)
 }
 
 func TestBSTree_PostOrderTraverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_PostOrderTraverse")
 
 	bstree := NewBSTree(6, &intComparator{})
@@ -55,11 +49,12 @@ func TestBSTree_PostOrderTraverse(t *testing.T) {
 	bstree.Insert(4)
 
 	acturl := bstree.PostOrderTraverse()
-	t.Log(acturl)
 	assert.Equal([]int{5, 2, 4, 7, 6}, acturl)
 }
 
 func TestBSTree_InOrderTraverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_InOrderTraverse")
 
 	bstree := NewBSTree(6, &intComparator{})
@@ -70,11 +65,12 @@ func TestBSTree_InOrderTraverse(t *testing.T) {
 	bstree.Insert(4)
 
 	acturl := bstree.InOrderTraverse()
-	t.Log(acturl)
 	assert.Equal([]int{2, 4, 5, 6, 7}, acturl)
 }
 
 func TestBSTree_LevelOrderTraverse(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_LevelOrderTraverse")
 
 	bstree := NewBSTree(6, &intComparator{})
@@ -85,11 +81,12 @@ func TestBSTree_LevelOrderTraverse(t *testing.T) {
 	bstree.Insert(4)
 
 	acturl := bstree.LevelOrderTraverse()
-	t.Log(acturl)
 	assert.Equal([]int{6, 5, 7, 2, 4}, acturl)
 }
 
 func TestBSTree_Delete(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_Delete")
 
 	bstree := NewBSTree(6, &intComparator{})
@@ -102,18 +99,18 @@ func TestBSTree_Delete(t *testing.T) {
 	bstree.Delete(4)
 
 	acturl1 := bstree.InOrderTraverse()
-	t.Log(acturl1)
 	assert.Equal([]int{2, 5, 6, 7}, acturl1)
 
 	//todo
 	// bstree.DeletetNode(6, comparator)
 	// bstree.Print()
 	// acturl2 := bstree.InOrderTraverse()
-	// t.Log(acturl2)
 	// assert.Equal([]int{2, 5, 7}, acturl2)
 }
 
 func TestBSTree_Depth(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_Depth")
 
 	bstree := NewBSTree(6, &intComparator{})
@@ -127,6 +124,8 @@ func TestBSTree_Depth(t *testing.T) {
 }
 
 func TestBSTree_IsSubTree(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBSTree_IsSubTree")
 
 	superTree := NewBSTree(8, &intComparator{})

datetime/conversion_test.go

@@ -7,6 +7,8 @@ import (
 )
 
 func TestToUnix(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToUnix")
 
 	tm1 := NewUnixNow()
@@ -17,34 +19,37 @@ func TestToUnix(t *testing.T) {
 }
 
 func TestToFormat(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToFormat")
 
 	tm, err := NewFormat("2022-03-18 17:04:05")
+	t.Log("TestToFormat", tm.ToFormat())
 	assert.IsNil(err)
-
-	t.Log("ToFormat -> ", tm.ToFormat())
 }
 
 func TestToFormatForTpl(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToFormatForTpl")
 
 	_, err := NewFormat("2022/03/18 17:04:05")
 	assert.IsNotNil(err)
 
 	tm, err := NewFormat("2022-03-18 17:04:05")
+	t.Log("TestToFormatForTpl", tm.ToFormatForTpl("2006/01/02 15:04:05"))
 	assert.IsNil(err)
-
-	t.Log("ToFormatForTpl -> ", tm.ToFormatForTpl("2006/01/02 15:04:05"))
 }
 
 func TestToIso8601(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestToIso8601")
 
 	_, err := NewISO8601("2022-03-18 17:04:05")
 	assert.IsNotNil(err)
 
 	tm, err := NewISO8601("2006-01-02T15:04:05.999Z")
+	t.Log("TestToIso8601", tm.ToIso8601())
 	assert.IsNil(err)
-
-	t.Log("ToIso8601 -> ", tm.ToIso8601())
 }

datetime/datetime.go

@@ -3,7 +3,7 @@
 
 // Package datetime implements some functions to format date and time.
 // Note:
-// 1. `format` param in FormatTimeToStr function should be as flow:
+// 1. `format` param in FormatTimeToStr function should be as flow (case no sensitive):
 // "yyyy-mm-dd hh:mm:ss"
 // "yyyy-mm-dd hh:mm"
 // "yyyy-mm-dd hh"
@@ -18,14 +18,19 @@
 // "yyyy/mm"
 // "mm/dd"
 // "dd/mm/yy hh:mm:ss"
+// "yyyymmdd"
+// "mmddyy"
 // "yyyy"
+// "yy"
 // "mm"
 // "hh:mm:ss"
+// "hh:mm"
 // "mm:ss"
 package datetime
 
 import (
 	"fmt"
+	"strings"
 	"time"
 )
 
@@ -35,7 +40,7 @@ func init() {
 	timeFormat = map[string]string{
 		"yyyy-mm-dd hh:mm:ss": "2006-01-02 15:04:05",
 		"yyyy-mm-dd hh:mm":    "2006-01-02 15:04",
-		"yyyy-mm-dd hh":       "2006-01-02 15:04",
+		"yyyy-mm-dd hh":       "2006-01-02 15",
 		"yyyy-mm-dd":          "2006-01-02",
 		"yyyy-mm":             "2006-01",
 		"mm-dd":               "01-02",
@@ -47,9 +52,13 @@ func init() {
 		"yyyy/mm":             "2006/01",
 		"mm/dd":               "01/02",
 		"dd/mm/yy hh:mm:ss":   "02/01/06 15:04:05",
+		"yyyymmdd":            "20060102",
+		"mmddyy":              "010206",
 		"yyyy":                "2006",
+		"yy":                  "06",
 		"mm":                  "01",
 		"hh:mm:ss":            "15:04:05",
+		"hh:mm":               "15:04",
 		"mm:ss":               "04:05",
 	}
 }
@@ -72,6 +81,12 @@ func AddDay(t time.Time, day int64) time.Time {
 	return t.Add(24 * time.Hour * time.Duration(day))
 }
 
+// AddYear add or sub year to the time.
+// Play: https://go.dev/play/p/MqW2ujnBx10
+func AddYear(t time.Time, year int64) time.Time {
+	return t.Add(365 * 24 * time.Hour * time.Duration(year))
+}
+
 // GetNowDate return format yyyy-mm-dd of current date.
 // Play: https://go.dev/play/p/PvfkPpcpBBf
 func GetNowDate() string {
@@ -90,6 +105,18 @@ func GetNowDateTime() string {
 	return time.Now().Format("2006-01-02 15:04:05")
 }
 
+// GetTodayStartTime return the start time of today, format: yyyy-mm-dd 00:00:00.
+// Play: https://go.dev/play/p/84siyYF7t99
+func GetTodayStartTime() string {
+	return time.Now().Format("2006-01-02") + " 00:00:00"
+}
+
+// GetTodayEndTime return the end time of today, format: yyyy-mm-dd 23:59:59.
+// Play: https://go.dev/play/p/jjrLnfoqgn3
+func GetTodayEndTime() string {
+	return time.Now().Format("2006-01-02") + " 23:59:59"
+}
+
 // GetZeroHourTimestamp return timestamp of zero hour (timestamp of 00:00).
 // Play: https://go.dev/play/p/QmL2oIaGE3q
 func GetZeroHourTimestamp() int64 {
@@ -106,19 +133,40 @@ func GetNightTimestamp() int64 {
 
 // FormatTimeToStr convert time to string.
 // Play: https://go.dev/play/p/_Ia7M8H_OvE
-func FormatTimeToStr(t time.Time, format string) string {
-	return t.Format(timeFormat[format])
+func FormatTimeToStr(t time.Time, format string, timezone ...string) string {
+	tf, ok := timeFormat[strings.ToLower(format)]
+	if !ok {
+		return ""
+	}
+
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return ""
+		}
+		return t.In(loc).Format(tf)
+	}
+	return t.Format(tf)
 }
 
 // FormatStrToTime convert string to time.
 // Play: https://go.dev/play/p/1h9FwdU8ql4
-func FormatStrToTime(str, format string) (time.Time, error) {
-	v, ok := timeFormat[format]
+func FormatStrToTime(str, format string, timezone ...string) (time.Time, error) {
+	tf, ok := timeFormat[strings.ToLower(format)]
 	if !ok {
-		return time.Time{}, fmt.Errorf("format %s not found", format)
+		return time.Time{}, fmt.Errorf("format %s not support", format)
 	}
 
-	return time.Parse(v, str)
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return time.Time{}, err
+		}
+
+		return time.ParseInLocation(tf, str, loc)
+	}
+
+	return time.Parse(tf, str)
 }
 
 // BeginOfMinute return beginning minute time of day.
@@ -218,3 +266,118 @@ func BeginOfYear(t time.Time) time.Time {
 func EndOfYear(t time.Time) time.Time {
 	return BeginOfYear(t).AddDate(1, 0, 0).Add(-time.Nanosecond)
 }
+
+// IsLeapYear check if param year is leap year or not.
+// Play: https://go.dev/play/p/xS1eS2ejGew
+func IsLeapYear(year int) bool {
+	return year%4 == 0 && (year%100 != 0 || year%400 == 0)
+}
+
+// BetweenSeconds returns the number of seconds between two times.
+// Play: https://go.dev/play/p/n3YDRyfyXJu
+func BetweenSeconds(t1 time.Time, t2 time.Time) int64 {
+	index := t2.Unix() - t1.Unix()
+	return index
+}
+
+// DayOfYear returns which day of the year the parameter date `t` is.
+// Play: https://go.dev/play/p/0hjqhTwFNlH
+func DayOfYear(t time.Time) int {
+	y, m, d := t.Date()
+	firstDay := time.Date(y, 1, 1, 0, 0, 0, 0, t.Location())
+	nowDate := time.Date(y, m, d, 0, 0, 0, 0, t.Location())
+
+	return int(nowDate.Sub(firstDay).Hours() / 24)
+}
+
+// IsWeekend checks if passed time is weekend or not.
+// Play: https://go.dev/play/p/cupRM5aZOIY
+// Deprecated Use '== Weekday' instead
+func IsWeekend(t time.Time) bool {
+	return time.Saturday == t.Weekday() || time.Sunday == t.Weekday()
+}
+
+// NowDateOrTime return current datetime with specific format and timezone.
+// Play: https://go.dev/play/p/EZ-begEjtT0
+func NowDateOrTime(format string, timezone ...string) string {
+	tf, ok := timeFormat[strings.ToLower(format)]
+	if !ok {
+		return ""
+	}
+
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return ""
+		}
+
+		return time.Now().In(loc).Format(tf)
+	}
+
+	return time.Now().Format(tf)
+}
+
+// Timestamp return current second timestamp.
+// Play: https://go.dev/play/p/iU5b7Vvjx6x
+func Timestamp(timezone ...string) int64 {
+	t := time.Now()
+
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return 0
+		}
+
+		t = t.In(loc)
+	}
+
+	return t.Unix()
+}
+
+// TimestampMilli return current mill second timestamp.
+// Play: https://go.dev/play/p/4gvEusOTu1T
+func TimestampMilli(timezone ...string) int64 {
+	t := time.Now()
+
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return 0
+		}
+		t = t.In(loc)
+	}
+
+	return int64(time.Nanosecond) * t.UnixNano() / int64(time.Millisecond)
+}
+
+// TimestampMicro return current micro second timestamp.
+// Play: https://go.dev/play/p/2maANglKHQE
+func TimestampMicro(timezone ...string) int64 {
+	t := time.Now()
+
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return 0
+		}
+		t = t.In(loc)
+	}
+
+	return int64(time.Nanosecond) * t.UnixNano() / int64(time.Microsecond)
+}
+
+// TimestampNano return current nano second timestamp.
+// Play: https://go.dev/play/p/A9Oq_COrcCF
+func TimestampNano(timezone ...string) int64 {
+	t := time.Now()
+
+	if timezone != nil && timezone[0] != "" {
+		loc, err := time.LoadLocation(timezone[0])
+		if err != nil {
+			return 0
+		}
+		t = t.In(loc)
+	}
+
+	return t.UnixNano()
+}

datetime/datetime_example_test.go

@@ -57,6 +57,23 @@ func ExampleAddMinute() {
 	// -2m0s
 }
 
+func ExampleAddYear() {
+	now := time.Now()
+
+	after1Year := AddYear(now, 1)
+	diff1 := after1Year.Sub(now)
+
+	before1Year := AddYear(now, -1)
+	diff2 := before1Year.Sub(now)
+
+	fmt.Println(diff1)
+	fmt.Println(diff2)
+
+	// Output:
+	// 8760h0m0s
+	// -8760h0m0s
+}
+
 func ExampleGetNowDate() {
 	result := GetNowDate()
 
@@ -114,15 +131,18 @@ func ExampleFormatTimeToStr() {
 	result1 := FormatTimeToStr(datetime, "yyyy-mm-dd hh:mm:ss")
 	result2 := FormatTimeToStr(datetime, "yyyy-mm-dd")
 	result3 := FormatTimeToStr(datetime, "dd-mm-yy hh:mm:ss")
+	result4 := FormatTimeToStr(datetime, "yyyy-mm-dd hh")
 
 	fmt.Println(result1)
 	fmt.Println(result2)
 	fmt.Println(result3)
+	fmt.Println(result4)
 
 	// Output:
 	// 2021-01-02 16:04:08
 	// 2021-01-02
 	// 02-01-21 16:04:08
+	// 2021-01-02 16
 }
 
 func ExampleFormatStrToTime() {
@@ -321,3 +341,70 @@ func ExampleNewUnixNow() {
 // 	// Output:
 // 	// 2006-01-02T23:04:05+08:00
 // }
+
+func ExampleIsLeapYear() {
+	result1 := IsLeapYear(2000)
+	result2 := IsLeapYear(2001)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+
+	// Output:
+	// true
+	// false
+}
+
+func ExampleBetweenSeconds() {
+	today := time.Now()
+	tomorrow := AddDay(today, 1)
+	yesterday := AddDay(today, -1)
+
+	result1 := BetweenSeconds(today, tomorrow)
+	result2 := BetweenSeconds(today, yesterday)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+
+	// Output:
+	// 86400
+	// -86400
+}
+
+func ExampleDayOfYear() {
+	date1 := time.Date(2023, 02, 01, 1, 1, 1, 0, time.Local)
+	result1 := DayOfYear(date1)
+
+	date2 := time.Date(2023, 01, 02, 1, 1, 1, 0, time.Local)
+	result2 := DayOfYear(date2)
+
+	date3 := time.Date(2023, 01, 01, 1, 1, 1, 0, time.Local)
+	result3 := DayOfYear(date3)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+
+	// Output:
+	// 31
+	// 1
+	// 0
+}
+
+func ExampleIsWeekend() {
+	date1 := time.Date(2023, 06, 03, 0, 0, 0, 0, time.Local)
+	date2 := time.Date(2023, 06, 04, 0, 0, 0, 0, time.Local)
+	date3 := time.Date(2023, 06, 02, 0, 0, 0, 0, time.Local)
+
+	result1 := IsWeekend(date1)
+	result2 := IsWeekend(date2)
+	result3 := IsWeekend(date3)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+	fmt.Println(result3)
+
+	// Output:
+	// true
+	// true
+	// false
+}

datetime/datetime_test.go

@@ -7,7 +7,40 @@ import (
 	"github.com/duke-git/lancet/v2/internal"
 )
 
+func TestAddYear(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestAddDay")
+
+	now := time.Now()
+	after2Years := AddYear(now, 1)
+	diff1 := after2Years.Sub(now)
+	assert.Equal(float64(8760), diff1.Hours())
+
+	before2Years := AddYear(now, -1)
+	diff2 := before2Years.Sub(now)
+	assert.Equal(float64(-8760), diff2.Hours())
+}
+
+func TestBetweenSeconds(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestBetweenSeconds")
+
+	today := time.Now()
+	tomorrow := AddDay(today, 1)
+	yesterday := AddDay(today, -1)
+
+	result1 := BetweenSeconds(today, tomorrow)
+	result2 := BetweenSeconds(today, yesterday)
+
+	assert.Equal(int64(86400), result1)
+	assert.Equal(int64(-86400), result2)
+}
+
 func TestAddDay(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestAddDay")
 
 	now := time.Now()
@@ -21,6 +54,8 @@ func TestAddDay(t *testing.T) {
 }
 
 func TestAddHour(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestAddHour")
 
 	now := time.Now()
@@ -34,6 +69,8 @@ func TestAddHour(t *testing.T) {
 }
 
 func TestAddMinute(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestAddMinute")
 
 	now := time.Now()
@@ -47,44 +84,77 @@ func TestAddMinute(t *testing.T) {
 }
 
 func TestGetNowDate(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestGetNowDate")
 	expected := time.Now().Format("2006-01-02")
 	assert.Equal(expected, GetNowDate())
 }
 
 func TestGetNowTime(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestGetNowTime")
 	expected := time.Now().Format("15:04:05")
 	assert.Equal(expected, GetNowTime())
 }
 
 func TestGetNowDateTime(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestGetNowDateTime")
 	expected := time.Now().Format("2006-01-02 15:04:05")
 	assert.Equal(expected, GetNowDateTime())
 }
 
+func TestGetTodayStartTime(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestGetTodayStartTime")
+	expected := time.Now().Format("2006-01-02") + " 00:00:00"
+	assert.Equal(expected, GetTodayStartTime())
+}
+
+func TestGetTodayEndTime(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestGetTodayEndTime")
+	expected := time.Now().Format("2006-01-02") + " 23:59:59"
+	assert.Equal(expected, GetTodayEndTime())
+}
+
 func TestFormatTimeToStr(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestFormatTimeToStr")
 
 	datetime, _ := time.Parse("2006-01-02 15:04:05", "2021-01-02 16:04:08")
 	cases := []string{
 		"yyyy-mm-dd hh:mm:ss", "yyyy-mm-dd",
 		"dd-mm-yy hh:mm:ss", "yyyy/mm/dd hh:mm:ss",
-		"hh:mm:ss", "yyyy/mm"}
+		"hh:mm:ss", "yyyy/mm",
+		"yyyy-mm-dd hh",
+	}
 
 	expected := []string{
 		"2021-01-02 16:04:08", "2021-01-02",
 		"02-01-21 16:04:08", "2021/01/02 16:04:08",
-		"16:04:08", "2021/01"}
+		"16:04:08", "2021/01",
+		"2021-01-02 16",
+	}
 
 	for i := 0; i < len(cases); i++ {
 		actual := FormatTimeToStr(datetime, cases[i])
 		assert.Equal(expected[i], actual)
 	}
+
+	ds := FormatTimeToStr(datetime, "yyyy-mm-dd hh:mm:ss", "EST")
+	t.Log(ds)
 }
 
 func TestFormatStrToTime(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestFormatStrToTime")
 
 	formats := []string{
@@ -96,22 +166,28 @@ func TestFormatStrToTime(t *testing.T) {
 		"dd-mm-yy hh:mm:ss", "yyyy/mm/dd hh:mm:ss",
 		"yyyy/mm"}
 
-	datetimeStr := []string{
+	expected := []string{
 		"2021-01-02 16:04:08", "2021-01-02",
 		"02-01-21 16:04:08", "2021/01/02 16:04:08",
 		"2021/01"}
 
 	for i := 0; i < len(cases); i++ {
-		actual, err := FormatStrToTime(datetimeStr[i], cases[i])
+		actual, err := FormatStrToTime(expected[i], cases[i])
 		if err != nil {
 			t.Fatal(err)
 		}
-		expected, _ := time.Parse(formats[i], datetimeStr[i])
+		expected, _ := time.Parse(formats[i], expected[i])
 		assert.Equal(expected, actual)
 	}
+
+	estTime, err := FormatStrToTime("2021-01-02 16:04:08", "yyyy-mm-dd hh:mm:ss", "EST")
+	t.Log(estTime)
+	assert.IsNil(err)
 }
 
 func TestBeginOfMinute(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBeginOfMinute")
 
 	expected := time.Date(2022, 2, 15, 15, 48, 0, 0, time.Local)
@@ -122,6 +198,8 @@ func TestBeginOfMinute(t *testing.T) {
 }
 
 func TestEndOfMinute(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEndOfMinute")
 
 	expected := time.Date(2022, 2, 15, 15, 48, 59, 999999999, time.Local)
@@ -132,6 +210,8 @@ func TestEndOfMinute(t *testing.T) {
 }
 
 func TestBeginOfHour(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBeginOfHour")
 
 	expected := time.Date(2022, 2, 15, 15, 0, 0, 0, time.Local)
@@ -142,6 +222,8 @@ func TestBeginOfHour(t *testing.T) {
 }
 
 func TestEndOfHour(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEndOfHour")
 
 	expected := time.Date(2022, 2, 15, 15, 59, 59, 999999999, time.Local)
@@ -152,6 +234,8 @@ func TestEndOfHour(t *testing.T) {
 }
 
 func TestBeginOfDay(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBeginOfDay")
 
 	expected := time.Date(2022, 2, 15, 0, 0, 0, 0, time.Local)
@@ -162,6 +246,8 @@ func TestBeginOfDay(t *testing.T) {
 }
 
 func TestEndOfDay(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEndOfDay")
 
 	expected := time.Date(2022, 2, 15, 23, 59, 59, 999999999, time.Local)
@@ -172,6 +258,8 @@ func TestEndOfDay(t *testing.T) {
 }
 
 func TestBeginOfWeek(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBeginOfWeek")
 
 	expected := time.Date(2022, 2, 13, 0, 0, 0, 0, time.Local)
@@ -182,6 +270,8 @@ func TestBeginOfWeek(t *testing.T) {
 }
 
 func TestEndOfWeek(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEndOfWeek")
 
 	expected := time.Date(2022, 2, 19, 23, 59, 59, 999999999, time.Local)
@@ -192,6 +282,8 @@ func TestEndOfWeek(t *testing.T) {
 }
 
 func TestBeginOfMonth(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBeginOfMonth")
 
 	expected := time.Date(2022, 2, 1, 0, 0, 0, 0, time.Local)
@@ -202,6 +294,8 @@ func TestBeginOfMonth(t *testing.T) {
 }
 
 func TestEndOfMonth(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEndOfMonth")
 
 	expected := time.Date(2022, 2, 28, 23, 59, 59, 999999999, time.Local)
@@ -212,6 +306,8 @@ func TestEndOfMonth(t *testing.T) {
 }
 
 func TestBeginOfYear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestBeginOfYear")
 
 	expected := time.Date(2022, 1, 1, 0, 0, 0, 0, time.Local)
@@ -222,6 +318,8 @@ func TestBeginOfYear(t *testing.T) {
 }
 
 func TestEndOfYear(t *testing.T) {
+	t.Parallel()
+
 	assert := internal.NewAssert(t, "TestEndOfYear")
 
 	expected := time.Date(2022, 12, 31, 23, 59, 59, 999999999, time.Local)
@@ -230,3 +328,85 @@ func TestEndOfYear(t *testing.T) {
 
 	assert.Equal(expected, actual)
 }
+
+func TestIsLeapYear(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestEndOfYear")
+
+	result1 := IsLeapYear(2000)
+	result2 := IsLeapYear(2001)
+
+	assert.Equal(true, result1)
+	assert.Equal(false, result2)
+}
+
+func TestDayOfYear(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestDayOfYear")
+	date1 := time.Date(2023, 02, 01, 1, 1, 1, 0, time.Local)
+	result1 := DayOfYear(date1)
+	assert.Equal(31, result1)
+
+	date2 := time.Date(2023, 01, 02, 1, 1, 1, 0, time.Local)
+	result2 := DayOfYear(date2)
+	assert.Equal(1, result2)
+
+	date3 := time.Date(2023, 01, 01, 1, 1, 1, 0, time.Local)
+	result3 := DayOfYear(date3)
+	assert.Equal(0, result3)
+}
+
+func TestIsWeekend(t *testing.T) {
+	t.Parallel()
+
+	assert := internal.NewAssert(t, "TestIsWeekend")
+
+	date := time.Date(2023, 06, 03, 0, 0, 0, 0, time.Local)
+	result := IsWeekend(date)
+	assert.Equal(true, result)
+
+	date1 := time.Date(2023, 06, 04, 0, 0, 0, 0, time.Local)
+	result1 := IsWeekend(date1)
+	assert.Equal(true, result1)
+
+	date2 := time.Date(2023, 06, 02, 0, 0, 0, 0, time.Local)
+	result2 := IsWeekend(date2)
+	assert.Equal(false, result2)
+}
+
+func TestNowDateOrTime(t *testing.T) {
+	t.Parallel()
+
+	formats := []string{
+		"yyyy-mm-dd hh:mm:ss",
+		"yyyy-mm-dd",
+		"dd-mm-yy hh:mm:ss",
+		"yyyy/mm/dd hh:mm:ss",
+		"hh:mm:ss",
+		"yyyy/mm",
+		"yyyy-mm-dd hh",
+	}
+
+	for i := 0; i < len(formats); i++ {
+		result := NowDateOrTime(formats[i], "UTC")
+		t.Log(result)
+	}
+}
+
+func TestTimestamp(t *testing.T) {
+	t.Parallel()
+
+	ts1 := Timestamp()
+	t.Log(ts1)
+
+	ts2 := TimestampMilli()
+	t.Log(ts2)
+
+	ts3 := TimestampMicro()
+	t.Log(ts3)
+
+	ts4 := TimestampNano()
+	t.Log(ts4)
+}

docs/.vitepress/common.ts

@@ -0,0 +1,89 @@
+import { defineConfig, HeadConfig } from 'vitepress'
+
+export const META_IMAGE = '/lancet_logo.png'
+export const isProduction = process.env.NETLIFY && process.env.CONTEXT === 'production'
+
+if (process.env.NETLIFY) {
+    console.log('Netlify build', process.env.CONTEXT)
+}
+
+const productionHead: HeadConfig[] = [
+    [
+        'script',
+        {
+            src: 'https://unpkg.com/thesemetrics@latest',
+            async: '',
+            type: 'text/javascript',
+        },
+    ],
+]
+
+const rControl = /[\u0000-\u001f]/g
+const rSpecial = /[\s~`!@#$%^&*()\-_+=[\]{}|\\;:"'“”‘’<>,.?/]+/g
+const rCombining = /[\u0300-\u036F]/g
+
+/**
+ * Default slugification function
+ */
+export const slugify = (str: string): string =>
+    str
+        .normalize('NFKD')
+        // Remove accents
+        .replace(rCombining, '')
+        // Remove control characters
+        .replace(rControl, '')
+        // Replace special characters
+        .replace(rSpecial, '-')
+        // ensure it doesn't start with a number
+        .replace(/^(\d)/, '_$1')
+
+export const commonConfig = defineConfig({
+    title: 'Lancet',
+    appearance: 'dark',
+
+    markdown: {
+        theme: {
+            dark: 'dracula-soft',
+            light: 'vitesse-light',
+        },
+
+        attrs: {
+            leftDelimiter: '%{',
+            rightDelimiter: '}%',
+        },
+
+        anchor: {
+            slugify,
+        },
+    },
+
+    head: [
+        // ['link', { rel: 'icon', type: 'image/svg+xml', href: '/logo.svg' }],
+        ['link', { rel: 'icon', type: 'image/png', href: '/lancet_logo_mini.png' }],
+        ['meta', { name: 'theme-color', content: '#5f67ee' }],
+        ['meta', { name: 'og:type', content: 'website' }],
+        ['meta', { name: 'og:locale', content: 'zh' }],
+
+        ...(isProduction ? productionHead : []),
+    ],
+
+    themeConfig: {
+        logo: { src: '/lancet_logo_mini.png', width: 24, height: 24 },
+        outline: [2, 3],
+
+        search: {
+            provider: 'local',
+        },
+        socialLinks: [
+            {
+                icon: 'github',
+                link: 'https://github.com/duke-git/lancet',
+            },
+        ],
+
+        footer: {
+            copyright: 'Copyright © 2023-present Duke Du',
+            message: 'Released under the MIT License.',
+        },
+    },
+})

docs/.vitepress/config.mts

@@ -0,0 +1,14 @@
+import { defineConfig } from 'vitepress'
+import { commonConfig } from './common'
+import { zhConfig } from './zh'
+import { enConfig } from './en'
+
+// https://vitepress.dev/reference/site-config
+export default defineConfig({
+    ...commonConfig,
+
+    locales: {
+        root: { label: '简体中文', lang: 'zh-CN', link: '/', ...zhConfig },
+        en: { label: 'English', lang: 'en-US', link: '/en/', ...enConfig },
+    },
+})

docs/.vitepress/en.ts

@@ -0,0 +1,75 @@
+import type { DefaultTheme, LocaleSpecificConfig } from 'vitepress'
+
+export const META_URL = 'https://lancet.go.dev'
+export const META_TITLE = 'Lancet'
+export const META_DESCRIPTION = 'A powerful util function library of Go'
+
+export const enConfig: LocaleSpecificConfig<DefaultTheme.Config> = {
+    description: META_DESCRIPTION,
+
+    head: [
+        ['meta', { property: 'og:url', content: META_URL }],
+        ['meta', { property: 'og:description', content: META_DESCRIPTION }],
+        ['meta', { property: 'twitter:url', content: META_URL }],
+        ['meta', { property: 'twitter:title', content: META_TITLE }],
+        ['meta', { property: 'twitter:description', content: META_DESCRIPTION }],
+    ],
+
+    themeConfig: {
+        nav: [
+            {
+                text: 'Home',
+                link: '/en/',
+                activeMatch: '^/en/',
+            },
+            {
+                text: 'Guide',
+                link: '/en/guide/introduction',
+                activeMatch: '^/en/guide/',
+            },
+            { text: 'API', link: '/en/api/overview', activeMatch: '^/en/api/' },
+            {
+                text: 'Links',
+                items: [
+                    {
+                        text: 'Releaselog',
+                        link: 'https://github.com/duke-git/lancet/releases',
+                    },
+                ],
+            },
+        ],
+
+        sidebar: {
+            '/en/': [
+                {
+                    text: 'Introduction',
+                    items: [
+                        {
+                            text: 'What is Lancet？',
+                            link: '/en/guide/introduction',
+                        },
+                        {
+                            text: 'getting started',
+                            link: '/en/guide/getting_started',
+                        },
+                    ],
+                },
+            ],
+            '/en/api/': [
+                {
+                    text: 'overview',
+                    items: [{ text: 'overview of API', link: '/en/api/overview' }],
+                },
+                {
+                    text: 'packages',
+                    items: [
+                        { text: 'algorithm', link: '/en/api/packages/algorithm' },
+                        { text: 'compare', link: '/en/api/packages/compare' },
+                        { text: 'concurrency', link: '/en/api/packages/concurrency' },
+                        { text: 'condition', link: '/en/api/packages/condition' },
+                    ],
+                },
+            ],
+        },
+    },
+}

docs/.vitepress/zh.ts

@@ -0,0 +1,85 @@
+import type { DefaultTheme, LocaleSpecificConfig } from 'vitepress'
+
+export const META_URL = 'https://lancet.go.dev'
+export const META_TITLE = 'Lancet'
+export const META_DESCRIPTION = '一个强大的Go语言工具函数库'
+
+export const zhConfig: LocaleSpecificConfig<DefaultTheme.Config> = {
+    description: META_DESCRIPTION,
+
+    head: [
+        ['meta', { property: 'og:url', content: META_URL }],
+        ['meta', { property: 'og:description', content: META_DESCRIPTION }],
+        ['meta', { property: 'twitter:url', content: META_URL }],
+        ['meta', { property: 'twitter:title', content: META_TITLE }],
+        ['meta', { property: 'twitter:description', content: META_DESCRIPTION }],
+    ],
+
+    themeConfig: {
+        outline: {
+            label: '本页内容',
+        },
+
+        docFooter: {
+            prev: '上一页',
+            next: '下一页',
+        },
+
+        nav: [
+            {
+                text: '首页',
+                link: '/',
+                activeMatch: '^/',
+            },
+            {
+                text: '指南',
+                link: '/guide/introduction',
+                activeMatch: '^/guide/',
+            },
+            { text: 'API', link: '/api/overview', activeMatch: '^/api/' },
+            {
+                text: '相关链接',
+                items: [
+                    {
+                        text: '更新日志',
+                        link: 'https://github.com/duke-git/lancet/releases',
+                    },
+                ],
+            },
+        ],
+
+        sidebar: {
+            '/': [
+                {
+                    text: '介绍',
+                    items: [
+                        {
+                            text: 'Lancet是什么？',
+                            link: '/guide/introduction',
+                        },
+                        {
+                            text: '开始',
+                            link: '/guide/getting_started',
+                        },
+                    ],
+                },
+            ],
+
+            '/api/': [
+                {
+                    text: '概览',
+                    items: [{ text: 'API概述', link: '/api/overview' }],
+                },
+                {
+                    text: 'API文档',
+                    items: [
+                        { text: '算法', link: '/api/packages/algorithm' },
+                        { text: '比较器', link: '/api/packages/compare' },
+                        { text: '并发处理', link: '/api/packages/concurrency' },
+                        { text: '条件判断', link: '/api/packages/condition' },
+                    ],
+                },
+            ],
+        },
+    },
+}

docs/api/overview.md

@@ -0,0 +1,69 @@
+---
+outline: deep
+---
+
+# API概述
+
+<b>lancet（柳叶刀）是一个强大、全面、高效、可复用的go语言工具函数库。包含25个包，超过600个工具函数。功能涵盖字符串处理、切片处理、网络、并发、加解密、文件处理、时间/日期、流处理、迭代器等等。</b>
+
+
+<style>
+.package-title {
+    color: black;
+    font-size: 18px;
+    text-align: center;
+    font-weight: bold;
+}
+.package-container {
+    font-size: 16px;
+    border: 1px dashed;
+    padding: 10px;
+    text-align: center;
+}
+
+.package-cell {
+    height: 40px;
+    width: 140px;
+    display: inline-block;
+    vertical-align: middle;
+    line-height: 40px;
+    background: #ecefff;
+    border: 1px solid;
+    margin-right: 10px;
+    margin-bottom: 10px;
+    border-radius: 6px;
+    font-weight: bold;
+}
+</style>
+
+<div>
+    <p class="package-title">lancet功能模块</p>
+    <div class="package-container">
+        <div class="package-cell">algorithm</div>
+        <div class="package-cell">compare</div>
+        <div class="package-cell">concurrency</div>
+        <div class="package-cell">condition</div>
+        <div class="package-cell">convertor</div>
+        <div class="package-cell">cryptor</div>
+        <div class="package-cell">datastructure</div>
+        <div class="package-cell">datetime</div>
+        <div class="package-cell">fileutil</div>
+        <div class="package-cell">formatter</div>
+        <div class="package-cell">function</div>
+        <div class="package-cell">iterator</div>
+        <div class="package-cell">maputil</div>
+        <div class="package-cell">mathutil</div>
+        <div class="package-cell">netutil</div>
+        <div class="package-cell">pointer</div>
+        <div class="package-cell">random</div>
+        <div class="package-cell">retry</div>
+        <div class="package-cell">slice</div>
+        <div class="package-cell">stream</div>
+        <div class="package-cell">structs</div>
+        <div class="package-cell">strutil</div>
+        <div class="package-cell">system</div>
+        <div class="package-cell">tuple</div>
+        <div class="package-cell">validator</div>
+        <div class="package-cell">xerror</div>
+    </div>
+</div>

docs/api/packages/algorithm.md

@@ -39,6 +39,8 @@ import (
 
 <div STYLE="page-break-after: always;"></div>
 
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
+
 ## 文档
 
 ### <span id="BubbleSort">BubbleSort</span>
@@ -51,7 +53,7 @@ import (
 func BubbleSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/GNdv7Jg2Taj)</span></b>
 
 ```go
 package main
@@ -99,7 +101,7 @@ func main() {
 func InsertionSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/G5LJiWgJJW6)</span></b>
 
 ```go
 package main
@@ -162,7 +164,7 @@ func main() {
 func SelectionSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/oXovbkekayS)</span></b>
 
 ```go
 package main
@@ -210,7 +212,7 @@ func main() {
 func ShellSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/3ibkszpJEu3)</span></b>
 
 ```go
 package main
@@ -258,7 +260,7 @@ func main() {
 func QuickSort[T any](slice []T comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/7Y7c1Elk3ax)</span></b>
 
 ```go
 package main
@@ -306,7 +308,7 @@ func main() {
 func HeapSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/u6Iwa1VZS_f)</span></b>
 
 ```go
 package main
@@ -354,7 +356,7 @@ func main() {
 func MergeSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/ydinn9YzUJn)</span></b>
 
 ```go
 package main
@@ -402,7 +404,7 @@ func main() {
 func CountSort[T any](slice []T, comparator lancetconstraints.Comparator) []T
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/tB-Umgm0DrP)</span></b>
 
 ```go
 package main
@@ -451,7 +453,7 @@ func main() {
 func BinarySearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
 ```
 
-<b>示例:</b>
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/t6MeGiUSN47)</span></b>
 
 ```go
 package main
@@ -502,7 +504,7 @@ func main() {
 func BinaryIterativeSearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
 ```
 
-<b>示例:</b>
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/Anozfr8ZLH3)</span></b>
 
 ```go
 package main
@@ -553,7 +555,7 @@ func main() {
 func LinearSearch[T any](slice []T, target T, equal func(a, b T) bool) int
 ```
 
-<b>示例:</b>
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/IsS7rgn5s3x)</span></b>
 
 ```go
 package main
@@ -596,7 +598,7 @@ func (l *LRUCache[K, V]) Delete(key K) bool
 func (l *LRUCache[K, V]) Len() int
 ```
 
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/-EZjgOURufP)</span></b>
 
 ```go
 package main

docs/api/packages/compare.md

@@ -0,0 +1,377 @@
+# Compare
+
+compare包提供几个轻量级的类型比较函数。
+
+<div STYLE="page-break-after: always;"></div>
+
+## 源码:
+
+-   [https://github.com/duke-git/lancet/blob/main/compare/compare.go](https://github.com/duke-git/lancet/blob/main/compare/compare.go)
+
+-   [https://github.com/duke-git/lancet/blob/main/compare/compare_internal.go](https://github.com/duke-git/lancet/blob/main/compare/compare_internal.go)
+
+<div STYLE="page-break-after: always;"></div>
+
+## 用法:
+
+```go
+import (
+    "github.com/duke-git/lancet/v2/condition"
+)
+```
+
+<div STYLE="page-break-after: always;"></div>
+
+## 目录
+
+-   [Equal](#Equal)
+-   [EqualValue](#EqualValue)
+-   [LessThan](#LessThan)
+-   [GreaterThan](#GreaterThan)
+-   [LessOrEqual](#LessOrEqual)
+-   [GreaterOrEqual](#GreaterOrEqual)
+-   [InDelta](#InDelta)
+
+
+<div STYLE="page-break-after: always;"></div>
+
+<link rel="stylesheet" type="text/css" href="../../styles/api_doc.css">
+
+## 文档
+
+### <span id="Equal">Equal</span>
+
+<p>检查两个值是否相等(检查类型和值)</p>
+
+<b>函数签名:</b>
+
+```go
+func Equal(left, right any) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/wmVxR-to4lz)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.Equal(1, 1)
+    result2 := compare.Equal("1", "1")
+    result3 := compare.Equal([]int{1, 2, 3}, []int{1, 2, 3})
+    result4 := compare.Equal(map[int]string{1: "a", 2: "b"}, map[int]string{1: "a", 2: "b"})
+
+    result5 := compare.Equal(1, "1")
+    result6 := compare.Equal(1, int64(1))
+    result7 := compare.Equal([]int{1, 2}, []int{1, 2, 3})
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+    fmt.Println(result7)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+    // false
+}
+```
+
+### <span id="EqualValue">EqualValue</span>
+
+<p>检查两个值是否相等(只检查值)</p>
+
+<b>函数签名:</b>
+
+```go
+func EqualValue(left, right any) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/fxnna_LLD9u)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.EqualValue(1, 1)
+    result2 := compare.EqualValue(int(1), int64(1))
+    result3 := compare.EqualValue(1, "1")
+    result4 := compare.EqualValue(1, "2")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+
+    // Output:
+    // true
+    // true
+    // true
+    // false
+}
+```
+
+### <span id="LessThan">LessThan</span>
+
+<p>验证参数`left`的值是否小于参数`right`的值。</p>
+
+<b>函数签名:</b>
+
+```go
+func LessThan(left, right any) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/cYh7FQQj0ne)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.LessThan(1, 2)
+    result2 := compare.LessThan(1.1, 2.2)
+    result3 := compare.LessThan("a", "b")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.LessThan(time1, time2)
+
+    result5 := compare.LessThan(2, 1)
+    result6 := compare.LessThan(1, int64(2))
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+}
+```
+
+### <span id="GreaterThan">GreaterThan</span>
+
+<p>验证参数`left`的值是否大于参数`right`的值。</p>
+
+<b>函数签名:</b>
+
+```go
+func GreaterThan(left, right any) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/9-NYDFZmIMp)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.GreaterThan(2, 1)
+    result2 := compare.GreaterThan(2.2, 1.1)
+    result3 := compare.GreaterThan("b", "a")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.GreaterThan(time2, time1)
+
+    result5 := compare.GreaterThan(1, 2)
+    result6 := compare.GreaterThan(int64(2), 1)
+    result7 := compare.GreaterThan("b", "c")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+    fmt.Println(result7)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+    // false
+}
+```
+
+### <span id="LessOrEqual">LessOrEqual</span>
+
+<p>验证参数`left`的值是否小于或等于参数`right`的值。</p>
+
+<b>函数签名:</b>
+
+```go
+func LessOrEqual(left, right any) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/e4T_scwoQzp)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.LessOrEqual(1, 1)
+    result2 := compare.LessOrEqual(1.1, 2.2)
+    result3 := compare.LessOrEqual("a", "b")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.LessOrEqual(time1, time2)
+
+    result5 := compare.LessOrEqual(2, 1)
+    result6 := compare.LessOrEqual(1, int64(2))
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+}
+```
+
+### <span id="GreaterOrEqual">GreaterOrEqual</span>
+
+<p>验证参数`left`的值是否大于或参数`right`的值。</p>
+
+<b>函数签名:</b>
+
+```go
+func GreaterOrEqual(left, right any) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/vx8mP0U8DFk)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.GreaterOrEqual(1, 1)
+    result2 := compare.GreaterOrEqual(2.2, 1.1)
+    result3 := compare.GreaterOrEqual("b", "b")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.GreaterOrEqual(time2, time1)
+
+    result5 := compare.GreaterOrEqual(1, 2)
+    result6 := compare.GreaterOrEqual(int64(2), 1)
+    result7 := compare.GreaterOrEqual("b", "c")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+    fmt.Println(result7)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+    // false
+}
+```
+
+### <span id="InDelta">InDelta</span>
+
+<p>检查增量内两个值是否相等。</p>
+
+<b>函数签名:</b>
+
+```go
+func InDelta[T constraints.Integer | constraints.Float](left, right T, delta float64) bool
+```
+
+<b>示例: <span class="run-container">[运行](https://go.dev/play/p/TuDdcNtMkjo)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := InDelta(1, 1, 0)
+    result2 := InDelta(1, 2, 0)
+
+    result3 := InDelta(2.0/3.0, 0.66667, 0.001)
+    result4 := InDelta(2.0/3.0, 0.0, 0.001)
+
+    result5 := InDelta(float64(74.96)-float64(20.48), 54.48, 0)
+    result6 := InDelta(float64(74.96)-float64(20.48), 54.48, 1e-14)
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+
+    // Output:
+    // true
+    // false
+    // true
+    // false
+    // false
+    // true
+}
+```

docs/api/packages/concurrency.md

@@ -1,5 +1,5 @@
 # Concurrency
-并发包包含一些支持并发编程的功能。例如：goroutine, channel, async等。
+并发包包含一些支持并发编程的功能。例如：goroutine, channel等。
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -33,11 +33,15 @@ import (
 
 <div STYLE="page-break-after: always;"></div>
 
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
+
 ## 文档
 
 
 ### Channel
+
 ### <span id="NewChannel">NewChannel</span>
+
 <p>返回一个Channel指针实例</p>
 
 <b>函数签名:</b>
@@ -46,7 +50,7 @@ import (
 type Channel[T any] struct
 func NewChannel[T any]() *Channel[T]
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/7aB4KyMMp9A)</span></b>
 
 ```go
 package main
@@ -70,7 +74,7 @@ func main() {
 ```go
 func (c *Channel[T]) Bridge(ctx context.Context, chanStream <-chan <-chan T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/qmWSy1NVF-Y)</span></b>
 
 ```go
 package main
@@ -122,7 +126,7 @@ func main() {
 ```go
 func (c *Channel[T]) FanIn(ctx context.Context, channels ...<-chan T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/2VYFMexEvTm)</span></b>
 
 ```go
 package main
@@ -161,7 +165,7 @@ func main() {
 ```go
 func (c *Channel[T]) Generate(ctx context.Context, values ...T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/7aB4KyMMp9A)</span></b>
 
 ```go
 package main
@@ -199,7 +203,7 @@ func main() {
 ```go
 func (c *Channel[T]) Repeat(ctx context.Context, values ...T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/k5N_ALVmYjE)</span></b>
 
 ```go
 package main
@@ -238,7 +242,7 @@ func main() {
 ```go
 func (c *Channel[T]) RepeatFn(ctx context.Context, fn func() T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/4J1zAWttP85)</span></b>
 
 ```go
 package main
@@ -279,7 +283,7 @@ func main() {
 ```go
 func (c *Channel[T]) Or(channels ...<-chan T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/Wqz9rwioPww)</span></b>
 
 ```go
 package main
@@ -322,7 +326,7 @@ func main() {
 ```go
 func (c *Channel[T]) OrDone(ctx context.Context, channel <-chan T) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/lm_GoS6aDjo)</span></b>
 
 ```go
 package main
@@ -360,7 +364,7 @@ func main() {
 ```go
 func (c *Channel[T]) Take(ctx context.Context, valueStream <-chan T, number int) <-chan T
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/9Utt-1pDr2J)</span></b>
 
 ```go
 package main
@@ -406,7 +410,7 @@ func main() {
 ```go
 func (c *Channel[T]) Tee(ctx context.Context, in <-chan T) (<-chan T, <-chan T)
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/3TQPKnCirrP)</span></b>
 
 ```go
 package main

docs/api/packages/condition.md

@@ -18,7 +18,7 @@ import (
 
 <div STYLE="page-break-after: always;"></div>
 
-## Index
+## 目录
 
 - [Bool](#Bool)
 - [And](#And)
@@ -31,7 +31,9 @@ import (
 
 <div STYLE="page-break-after: always;"></div>
 
-## 目录
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
+
+## 文档
 
 ### <span id="Bool">Bool</span>
 <p>返回传入参数的bool值.<br/>
@@ -45,7 +47,7 @@ slices和map的length大于0时，返回true，否则返回false<br/>
 ```go
 func Bool[T any](value T) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/ETzeDJRSvhm)</span></b>
 
 ```go
 package main
@@ -109,7 +111,7 @@ func main() {
 ```go
 func And[T, U any](a T, b U) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/W1SSUmt6pvr)</span></b>
 
 ```go
 package main
@@ -135,7 +137,7 @@ func main() {
 ```go
 func Or[T, U any](a T, b U) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/UlQTxHaeEkq)</span></b>
 
 ```go
 package main
@@ -161,7 +163,7 @@ func main() {
 ```go
 func Xor[T, U any](a T, b U) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/gObZrW7ZbG8)</span></b>
 
 ```go
 package main
@@ -187,7 +189,7 @@ func main() {
 ```go
 func Nor[T, U any](a T, b U) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/g2j08F_zZky)</span></b>
 
 ```go
 package main
@@ -213,7 +215,7 @@ func main() {
 ```go
 func Xnor[T, U any](a T, b U) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/OuDB9g51643)</span></b>
 
 ```go
 package main
@@ -239,7 +241,7 @@ func main() {
 ```go
 func Nand[T, U any](a T, b U) bool
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/vSRMLxLIbq8)</span></b>
 
 ```go
 package main
@@ -265,7 +267,7 @@ func main() {
 ```go
 func TernaryOperator[T, U any](isTrue T, ifValue U, elseValue U) U
 ```
-<b>示例:</b>
+<b>示例:<span class="run-container">[运行](https://go.dev/play/p/ElllPZY0guT)</span></b>
 
 ```go
 package main

docs/en/api/overview.md

@@ -0,0 +1,70 @@
+---
+outline: deep
+---
+
+# API Overview
+
+<b>Lancet (Lancet) is a powerful, comprehensive, efficient and reusable go language tool function library. Contains 25 packages, more than 600 utility functions. Functions cover string processing, slice processing, network, concurrency, encryption and decryption, file processing, time/date, stream processing, iterators, and more.</b>
+
+
+<style>
+.package-title {
+    color: black;
+    font-size: 18px;
+    text-align: center;
+    font-weight: bold;
+}
+.package-container {
+    font-size: 16px;
+    border: 1px dashed;
+    padding: 10px;
+    text-align: center;
+}
+
+.package-cell {
+    height: 40px;
+    width: 140px;
+    display: inline-block;
+    vertical-align: middle;
+    line-height: 40px;
+    background: #ecefff;
+    border: 1px solid;
+    margin-right: 10px;
+    margin-bottom: 10px;
+    border-radius: 6px;
+    font-weight: bold;
+}
+</style>
+
+<div>
+    <p class="package-title">lancet function module</p>
+    <div class="package-container">
+        <div class="package-cell">algorithm</div>
+        <div class="package-cell">compare</div>
+        <div class="package-cell">concurrency</div>
+        <div class="package-cell">condition</div>
+        <div class="package-cell">convertor</div>
+        <div class="package-cell">cryptor</div>
+        <div class="package-cell">datastructure</div>
+        <div class="package-cell">datetime</div>
+        <div class="package-cell">fileutil</div>
+        <div class="package-cell">formatter</div>
+        <div class="package-cell">function</div>
+        <div class="package-cell">iterator</div>
+        <div class="package-cell">maputil</div>
+        <div class="package-cell">mathutil</div>
+        <div class="package-cell">netutil</div>
+        <div class="package-cell">pointer</div>
+        <div class="package-cell">random</div>
+        <div class="package-cell">retry</div>
+        <div class="package-cell">slice</div>
+        <div class="package-cell">stream</div>
+        <div class="package-cell">structs</div>
+        <div class="package-cell">strutil</div>
+        <div class="package-cell">system</div>
+        <div class="package-cell">tuple</div>
+        <div class="package-cell">validator</div>
+        <div class="package-cell">xerror</div>
+    </div>
+</div>
+

docs/en/api/packages/algorithm.md

@@ -12,6 +12,8 @@ Package algorithm implements some basic algorithm. eg. sort, search.
 
 <div STYLE="page-break-after: always;"></div>
 
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
+
 ## Usage
 
 ```go
@@ -51,7 +53,7 @@ import (
 func BubbleSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/GNdv7Jg2Taj)</span></b>
 
 ```go
 package main
@@ -99,7 +101,7 @@ func main() {
 func InsertionSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/G5LJiWgJJW6)</span></b>
 
 ```go
 package main
@@ -162,7 +164,7 @@ func main() {
 func SelectionSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/oXovbkekayS)</span></b>
 
 ```go
 package main
@@ -210,7 +212,7 @@ func main() {
 func ShellSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/3ibkszpJEu3)</span></b>
 
 ```go
 package main
@@ -258,7 +260,7 @@ func main() {
 func QuickSort[T any](slice []T comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example:<span class="run-container">[Run](https://go.dev/play/p/7Y7c1Elk3ax)</span></b>
 
 ```go
 package main
@@ -306,7 +308,7 @@ func main() {
 func HeapSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/u6Iwa1VZS_f)</span></b>
 
 ```go
 package main
@@ -354,7 +356,7 @@ func main() {
 func MergeSort[T any](slice []T, comparator lancetconstraints.Comparator)
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/ydinn9YzUJn)</span></b>
 
 ```go
 package main
@@ -402,7 +404,7 @@ func main() {
 func CountSort[T any](slice []T, comparator lancetconstraints.Comparator) []T
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/tB-Umgm0DrP)</span></b>
 
 ```go
 package main
@@ -451,7 +453,7 @@ func main() {
 func BinarySearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/t6MeGiUSN47)</span></b>
 
 ```go
 package main
@@ -502,7 +504,7 @@ func main() {
 func BinaryIterativeSearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator lancetconstraints.Comparator) int
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/Anozfr8ZLH3)</span></b>
 
 ```go
 package main
@@ -553,7 +555,7 @@ func main() {
 func LinearSearch[T any](slice []T, target T, equal func(a, b T) bool) int
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/IsS7rgn5s3x)</span></b>
 
 ```go
 package main
@@ -596,7 +598,7 @@ func (l *LRUCache[K, V]) Delete(key K) bool
 func (l *LRUCache[K, V]) Len() int
 ```
 
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/IsS7rgn5s3x)</span></b>
 
 ```go
 package main

docs/en/api/packages/compare.md

@@ -0,0 +1,376 @@
+# Compare
+
+Package compare provides a lightweight comparison function on any type.
+
+<div STYLE="page-break-after: always;"></div>
+
+## Source:
+
+-   [https://github.com/duke-git/lancet/blob/main/compare/compare.go](https://github.com/duke-git/lancet/blob/main/compare/compare.go)
+
+-   [https://github.com/duke-git/lancet/blob/main/compare/compare_internal.go](https://github.com/duke-git/lancet/blob/main/compare/compare_internal.go)
+
+<div STYLE="page-break-after: always;"></div>
+
+## Usage:
+
+```go
+import (
+    "github.com/duke-git/lancet/v2/condition"
+)
+```
+
+<div STYLE="page-break-after: always;"></div>
+
+## Index
+
+-   [Equal](#Equal)
+-   [EqualValue](#EqualValue)
+-   [LessThan](#LessThan)
+-   [GreaterThan](#GreaterThan)
+-   [LessOrEqual](#LessOrEqual)
+-   [GreaterOrEqual](#GreaterOrEqual)
+-   [InDelta](#InDelta)
+
+<div STYLE="page-break-after: always;"></div>
+
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
+
+## Documentation
+
+### <span id="Equal">Equal</span>
+
+<p>Checks if two values are equal or not. (check both type and value)</p>
+
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/wmVxR-to4lz)</span></b>
+
+```go
+func Equal(left, right any) bool
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.Equal(1, 1)
+    result2 := compare.Equal("1", "1")
+    result3 := compare.Equal([]int{1, 2, 3}, []int{1, 2, 3})
+    result4 := compare.Equal(map[int]string{1: "a", 2: "b"}, map[int]string{1: "a", 2: "b"})
+
+    result5 := compare.Equal(1, "1")
+    result6 := compare.Equal(1, int64(1))
+    result7 := compare.Equal([]int{1, 2}, []int{1, 2, 3})
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+    fmt.Println(result7)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+    // false
+}
+```
+
+### <span id="EqualValue">EqualValue</span>
+
+<p>Checks if two values are equal or not. (check value only)</p>
+
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/fxnna_LLD9u)</span></b>
+
+```go
+func EqualValue(left, right any) bool
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.EqualValue(1, 1)
+    result2 := compare.EqualValue(int(1), int64(1))
+    result3 := compare.EqualValue(1, "1")
+    result4 := compare.EqualValue(1, "2")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+
+    // Output:
+    // true
+    // true
+    // true
+    // false
+}
+```
+
+### <span id="LessThan">LessThan</span>
+
+<p>Checks if value `left` less than value `right`.</p>
+
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/cYh7FQQj0ne)</span></b>
+
+```go
+func LessThan(left, right any) bool
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.LessThan(1, 2)
+    result2 := compare.LessThan(1.1, 2.2)
+    result3 := compare.LessThan("a", "b")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.LessThan(time1, time2)
+
+    result5 := compare.LessThan(2, 1)
+    result6 := compare.LessThan(1, int64(2))
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+}
+```
+
+### <span id="GreaterThan">GreaterThan</span>
+
+<p>Checks if value `left` greater than value `right`.</p>
+
+<b>Signature:</b>
+
+```go
+func GreaterThan(left, right any) bool
+```
+
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/9-NYDFZmIMp)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.GreaterThan(2, 1)
+    result2 := compare.GreaterThan(2.2, 1.1)
+    result3 := compare.GreaterThan("b", "a")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.GreaterThan(time2, time1)
+
+    result5 := compare.GreaterThan(1, 2)
+    result6 := compare.GreaterThan(int64(2), 1)
+    result7 := compare.GreaterThan("b", "c")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+    fmt.Println(result7)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+    // false
+}
+```
+
+### <span id="LessOrEqual">LessOrEqual</span>
+
+<p>Checks if value `left` less than or equal than value `right`.</p>
+
+<b>Signature:</b>
+
+```go
+func LessOrEqual(left, right any) bool
+```
+
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/e4T_scwoQzp)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.LessOrEqual(1, 1)
+    result2 := compare.LessOrEqual(1.1, 2.2)
+    result3 := compare.LessOrEqual("a", "b")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.LessOrEqual(time1, time2)
+
+    result5 := compare.LessOrEqual(2, 1)
+    result6 := compare.LessOrEqual(1, int64(2))
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+}
+```
+
+### <span id="GreaterOrEqual">GreaterOrEqual</span>
+
+<p>Checks if value `left` less greater or equal than value `right`.</p>
+
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/vx8mP0U8DFk)</span></b>
+
+```go
+func GreaterOrEqual(left, right any) bool
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := compare.GreaterOrEqual(1, 1)
+    result2 := compare.GreaterOrEqual(2.2, 1.1)
+    result3 := compare.GreaterOrEqual("b", "b")
+
+    time1 := time.Now()
+    time2 := time1.Add(time.Second)
+    result4 := compare.GreaterOrEqual(time2, time1)
+
+    result5 := compare.GreaterOrEqual(1, 2)
+    result6 := compare.GreaterOrEqual(int64(2), 1)
+    result7 := compare.GreaterOrEqual("b", "c")
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+    fmt.Println(result7)
+
+    // Output:
+    // true
+    // true
+    // true
+    // true
+    // false
+    // false
+    // false
+}
+```
+
+### <span id="InDelta">InDelta</span>
+
+<p>Checks if two values are equal or not within a delta.</p>
+
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/TuDdcNtMkjo)</span></b>
+
+```go
+func InDelta[T constraints.Integer | constraints.Float](left, right T, delta float64) bool
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/compare"
+)
+
+func main() {
+    result1 := InDelta(1, 1, 0)
+    result2 := InDelta(1, 2, 0)
+
+    result3 := InDelta(2.0/3.0, 0.66667, 0.001)
+    result4 := InDelta(2.0/3.0, 0.0, 0.001)
+
+    result5 := InDelta(float64(74.96)-float64(20.48), 54.48, 0)
+    result6 := InDelta(float64(74.96)-float64(20.48), 54.48, 1e-14)
+
+    fmt.Println(result1)
+    fmt.Println(result2)
+    fmt.Println(result3)
+    fmt.Println(result4)
+    fmt.Println(result5)
+    fmt.Println(result6)
+
+    // Output:
+    // true
+    // false
+    // true
+    // false
+    // false
+    // true
+}
+```

docs/en/api/packages/concurrency.md

@@ -1,5 +1,5 @@
 # Concurrency
-Package concurrency contain some functions to support concurrent programming. eg, goroutine, channel, async.
+Package concurrency contain some functions to support concurrent programming. eg, goroutine, channel.
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -33,8 +33,9 @@ import (
 
 <div STYLE="page-break-after: always;"></div>
 
-## Documentation
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
 
+## Documentation
 
 ## Channel
 ### <span id="NewChannel">NewChannel</span>
@@ -46,7 +47,7 @@ import (
 type Channel[T any] struct
 func NewChannel[T any]() *Channel[T]
 ```
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/7aB4KyMMp9A)</span></b>
 
 ```go
 package main
@@ -70,7 +71,7 @@ func main() {
 ```go
 func (c *Channel[T]) Bridge(ctx context.Context, chanStream <-chan <-chan T) <-chan T
 ```
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/qmWSy1NVF-Y)</span></b>
 
 ```go
 package main
@@ -122,7 +123,7 @@ func main() {
 ```go
 func (c *Channel[T]) FanIn(ctx context.Context, channels ...<-chan T) <-chan T
 ```
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/2VYFMexEvTm)</span></b>
 
 ```go
 package main
@@ -156,7 +157,7 @@ func main() {
 
 <p>Create channel, put values into the channel repeatly until cancel the context.</p>
 
-<b>Signature:</b>
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/k5N_ALVmYjE)</span></b>
 
 ```go
 func (c *Channel[T]) Repeat(ctx context.Context, values ...T) <-chan T
@@ -200,7 +201,7 @@ func main() {
 ```go
 func (c *Channel[T]) Generate(ctx context.Context, values ...T) <-chan T
 ```
-<b>Example:</b>
+<b>Example: <span class="run-container">[Run](https://go.dev/play/p/7aB4KyMMp9A)</span></b>
 
 ```go
 package main
@@ -233,7 +234,7 @@ func main() {
 
 <p>Create a channel, excutes fn repeatly, and put the result into the channel, until close context.</p>
 
-<b>Signature:</b>
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/4J1zAWttP85)</span></b>
 
 ```go
 func (c *Channel[T]) RepeatFn(ctx context.Context, fn func() T) <-chan T
@@ -275,7 +276,7 @@ func main() {
 
 <p>Read one or more channels into one channel, will close when any readin channel is closed.</p>
 
-<b>Signature:</b>
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/Wqz9rwioPww)</span></b>
 
 ```go
 func (c *Channel[T]) Or(channels ...<-chan T) <-chan T
@@ -318,7 +319,7 @@ func main() {
 
 <p>Read a channel into another channel, will close until cancel context.</p>
 
-<b>Signature:</b>
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/lm_GoS6aDjo)</span></b>
 
 ```go
 func (c *Channel[T]) OrDone(ctx context.Context, channel <-chan T) <-chan T
@@ -356,7 +357,7 @@ func main() {
 
 <p>Create a channel whose values are taken from another channel with limit number.</p>
 
-<b>Signature:</b>
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/9Utt-1pDr2J)</span></b>
 
 ```go
 func (c *Channel[T]) Take(ctx context.Context, valueStream <-chan T, number int) <-chan T
@@ -402,7 +403,7 @@ func main() {
 
 <p>Split one chanel into two channels, until cancel the context.</p>
 
-<b>Signature:</b>
+<b>Signature: <span class="run-container">[Run](https://go.dev/play/p/3TQPKnCirrP)</span></b>
 
 ```go
 func (c *Channel[T]) Tee(ctx context.Context, in <-chan T) (<-chan T, <-chan T)

docs/en/api/packages/condition.md

@@ -31,6 +31,8 @@ import (
 
 <div STYLE="page-break-after: always;"></div>
 
+<link rel="stylesheet" type="text/css" href="/styles/api_doc.css">
+
 ## Documentation
 
 
@@ -46,7 +48,7 @@ All other types are truthy if they are not their zero value.</p>
 ```go
 func Bool[T any](value T) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/ETzeDJRSvhm)</span></b>
 
 ```go
 package main
@@ -111,7 +113,7 @@ func main() {
 ```go
 func And[T, U any](a T, b U) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/W1SSUmt6pvr)</span></b>
 
 ```go
 package main
@@ -139,7 +141,7 @@ func main() {
 ```go
 func Or[T, U any](a T, b U) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/UlQTxHaeEkq)</span></b>
 
 ```go
 package main
@@ -167,7 +169,7 @@ func main() {
 ```go
 func Xor[T, U any](a T, b U) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/gObZrW7ZbG8)</span></b>
 
 ```go
 package main
@@ -195,7 +197,7 @@ func main() {
 ```go
 func Nor[T, U any](a T, b U) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/g2j08F_zZky)</span></b>
 
 ```go
 package main
@@ -222,7 +224,7 @@ func main() {
 ```go
 func Xnor[T, U any](a T, b U) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/OuDB9g51643)</span></b>
 
 ```go
 package main
@@ -249,7 +251,7 @@ func main() {
 ```go
 func Nand[T, U any](a T, b U) bool
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/vSRMLxLIbq8)</span></b>
 
 ```go
 package main
@@ -277,7 +279,7 @@ func main() {
 ```go
 func TernaryOperator[T, U any](isTrue T, ifValue U, elseValue U) U
 ```
-<b>Example:</b>
+<b>Example:<span class="run-container">[运行](https://go.dev/play/p/ElllPZY0guT)</span></b>
 
 ```go
 package main

docs/en/guide/getting_started.md

@@ -0,0 +1,50 @@
+---
+outline: deep
+---
+
+# Installation
+
+1. <b>For users who use go1.18 and above, it is recommended to install lancet v2.x.x. Cause in v2.x.x all functions was rewriten with generics of go1.18.</b>
+
+```go
+go get github.com/duke-git/lancet/v2 // will install latest version of v2.x.x
+```
+
+2. <b>For users who use version below go1.18, you should install v1.x.x. The latest of v1.x.x is v1.4.1. </b>
+
+```go
+go get github.com/duke-git/lancet // below go1.18, install latest version of v1.x.x
+```
+
+
+## Usage
+
+Lancet organizes the code into package structure, and you need to import the corresponding package name when use it. For example, if you use string-related functions, just import the strutil package like below:
+
+```go
+import "github.com/duke-git/lancet/v2/strutil"
+```
+
+## Example
+
+Here takes the string function `Reverse` (reverse order string) as an example, and the strutil package needs to be imported.
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/strutil"
+)
+
+func main() {
+    s := "hello"
+    rs := strutil.Reverse(s)
+    fmt.Println(rs) //olleh
+}
+```
+
+
+## More
+
+Check out the [APIs]([API](https://lancet.go.dev/api/overview.html)) for details.

docs/en/guide/introduction.md

@@ -0,0 +1,18 @@
+---
+outline: deep
+---
+
+# What is lancet?
+
+<b>Lancet is a powerful, efficient, and reusable util function library of go. Inspired by the java apache common package and lodash.js. </b>
+
+
+## Why lancet?
+
+Lancet makes Go dev easier by taking the hassle out of working with concurrency, net, math, slice, string, etc.
+Lancet's utility methods are great for:
+
+- Iterating slice and  array.
+- Manipulating strings.
+- Work with net and http.
+- Other tools, eg. random, crypto, stream, retry, etc.

docs/en/index.md

@@ -0,0 +1,43 @@
+---
+# https://vitepress.dev/reference/default-theme-home-page
+layout: home
+
+hero:
+  name: "Lancet"
+  text: "A powerful util function library of Go"
+  tagline: Simple, powerful, and efficient.
+  actions:
+    - theme: brand
+      text: Get Started
+      link: /en/guide/getting_started
+    - theme: alt
+      text: View on GitHub
+      link: https://github.com/duke-git/lancet
+    # - theme: alt
+    #   text: API Examples
+    #   link: /api-examples
+  image:
+    src: /lancet_logo.png
+    alt: lancet
+
+features:
+  - title: Powerful
+    icon: 💪
+    details: support 600+ go util functions. eg. string, slice, datetime, net, crypto, concurrency...
+  - title: Modular by design
+    icon: 🏗
+    details: Each module is designed as a package with no coupling between modules.
+  - title: Pure
+    icon: 💅
+    details: Only depends on two kinds of libraries, go standard library and golang.org/x.
+  - title: Simple
+    icon: 👏
+    details: Well structure, test for every exported function.
+---
+
+<p style="position:relative; top: -316px;left: 560px;">
+  <img style="display: inline-block;margin-right:10px;" src="https://img.shields.io/github/stars/duke-git/lancet?style=social" alt="">
+
+<img style="display: inline-block" src="https://img.shields.io/github/forks/duke-git/lancet?style=social" alt="">
+
+</p>

docs/formatter.md

@@ -1,65 +0,0 @@
-# Formatter
-
-formatter contains some functions for data formatting.
-
-<div STYLE="page-break-after: always;"></div>
-
-## Source:
-
--   [https://github.com/duke-git/lancet/blob/main/formatter/formatter.go](https://github.com/duke-git/lancet/blob/main/formatter/formatter.go)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Usage:
-
-```go
-import (
-    "github.com/duke-git/lancet/v2/formatter"
-)
-```
-
-<div STYLE="page-break-after: always;"></div>
-
-## Index
-
--   [Comma](#Comma)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Documentation
-
-### <span id="Comma">Comma</span>
-
-<p>Add comma to a number value by every 3 numbers from right to left. ahead by symbol char. if value is a invalid number string like "aa", return empty string.</p>
-
-<b>Signature:</b>
-
-```go
-func Comma[T constraints.Float | constraints.Integer | string](value T, symbol string) string
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/formatter"
-)
-
-func main() {
-    result1 := formatter.Comma("123", "")
-    result2 := formatter.Comma("12345", "$")
-    result3 := formatter.Comma(1234567, "￥")
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 123
-    // $12,345
-    // ￥1,234,567
-}
-```

docs/formatter_zh-CN.md

@@ -1,65 +0,0 @@
-# Formatter
-
-formatter 格式化器包含一些数据格式化处理方法。
-
-<div STYLE="page-break-after: always;"></div>
-
-## 源码:
-
--   [https://github.com/duke-git/lancet/blob/main/formatter/formatter.go](https://github.com/duke-git/lancet/blob/main/formatter/formatter.go)
-
-<div STYLE="page-break-after: always;"></div>
-
-## 用法:
-
-```go
-import (
-    "github.com/duke-git/lancet/v2/formatter"
-)
-```
-
-<div STYLE="page-break-after: always;"></div>
-
-## 目录
-
--   [Comma](#Comma)
-
-<div STYLE="page-break-after: always;"></div>
-
-## 文档
-
-### <span id="Comma">Comma</span>
-
-<p>用逗号每隔3位分割数字/字符串，支持前缀添加符号。参数value必须是数字或者可以转为数字的字符串, 否则返回空字符串</p>
-
-<b>函数签名:</b>
-
-```go
-func Comma[T constraints.Float | constraints.Integer | string](value T, symbol string) string
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/formatter"
-)
-
-func main() {
-    result1 := formatter.Comma("123", "")
-    result2 := formatter.Comma("12345", "$")
-    result3 := formatter.Comma(1234567, "￥")
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 123
-    // $12,345
-    // ￥1,234,567
-}
-```

docs/guide/getting_started.md

@@ -0,0 +1,48 @@
+---
+outline: deep
+---
+
+# 安装
+
+1. <b>使用 go1.18 及以上版本的用户，建议安装 v2.x.x。 因为 v2.x.x 应用 go1.18 的泛型重写了大部分函数。</b>
+
+```go
+go get github.com/duke-git/lancet/v2 // will install latest version of v2.x.x
+```
+
+2. <b>使用 go1.18 以下版本的用户，必须安装 v1.x.x。目前最新的 v1 版本是 v1.4.1。</b>
+
+```go
+go get github.com/duke-git/lancet // below go1.18, install latest version of v1.x.x
+```
+
+## 用法
+
+lancet 是以包的结构组织代码的，使用时需要导入相应的包名。例如：如果使用字符串相关函数，需要导入 strutil 包:
+
+```go
+import "github.com/duke-git/lancet/v2/strutil"
+```
+
+## 示例
+
+此处以字符串工具函数 Reverse（逆序字符串）为例，需要导入 strutil 包:
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/strutil"
+)
+
+func main() {
+    s := "hello"
+    rs := strutil.Reverse(s)
+    fmt.Println(rs) //olleh
+}
+```
+
+## More
+
+其他特性请参考[API](https://lancet.go.dev/api/overview.html).

docs/guide/introduction.md

@@ -0,0 +1,18 @@
+---
+outline: deep
+---
+
+# lancet是什么?
+
+<b>lancet（柳叶刀）是一个强大、全面、高效、可复用的go语言工具函数库。lancet受到了java apache common包和lodash.js的启发。 </b>
+
+
+## 为什么选择lancet?
+
+Lancet 消除了处理并发、网络、数学、切片、字符串等的麻烦，使 Go 开发变得更容易。
+Lancet 的实用方法非常适合：
+
+- 迭代切片和数组。
+- 操作字符串。
+- 处理网络和http请求。
+- 其他工具，例如。 随机、加密、流、重试等。

docs/index.md

@@ -0,0 +1,45 @@
+---
+# https://vitepress.dev/reference/default-theme-home-page
+layout: home
+
+hero:
+    name: 'Lancet'
+    text: '一个强大的Go语言工具函数库'
+    tagline: '简洁, 强大, 高效'
+    actions:
+        - theme: brand
+          text: 开始使用
+          link: /guide/getting_started
+        - theme: alt
+          text: 在GitHub中查看
+          link: https://github.com/duke-git/lancet
+
+    image:
+        src: /lancet_logo.png
+        alt: lancet
+
+features:
+    - title: 全面
+      icon: 💪
+      details: 特性丰富，支持600+ go util函数。字符串、切片、日期时间、网络、加密、并发...
+    - title: 模块化设计
+      icon: 🏗
+      details: 每个模块设计成一个包，模块之间无耦合。
+    - title: 纯净
+      icon: 💅
+      details: 只依赖go标准库和golang.org/x。
+    - title: 简洁
+      icon: 👏
+      details: 结构良好，测试每个导出的函数。
+---
+
+<p style="position:relative; top: -316px;left: 540px;">
+  <img style="display: inline-block;margin-right:10px;" src="https://img.shields.io/github/stars/duke-git/lancet?style=social" alt="">
+
+<img style="display: inline-block" src="https://img.shields.io/github/forks/duke-git/lancet?style=social" alt="">
+
+  <!-- [![](https://img.shields.io/github/stars/duke-git/lancet?style=social)](https://github.com/duke-git/lancet)
+
+  [![](https://img.shields.io/github/forks/duke-git/lancet?style=social)](https://github.com/duke-git/lancet) -->
+
+</p>

docs/maputil.md

@@ -1,383 +0,0 @@
-# Maputil
-
-Package maputil includes some functions to manipulate map.
-
-<div STYLE="page-break-after: always;"></div>
-
-## Source:
-
--   [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Example:
-
-```go
-import (
-    "github.com/duke-git/lancet/v2/maputil"
-)
-```
-
-<div STYLE="page-break-after: always;"></div>
-
-## Index
-
--   [ForEach](#ForEach)
--   [Filter](#Filter)
--   [Intersect](#Intersect)
--   [Keys](#Keys)
--   [Merge](#Merge)
--   [Minus](#Minus)
--   [Values](#Values)
--   [IsDisjoint](#IsDisjoint)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Documentation
-
-### <span id="ForEach">ForEach</span>
-
-<p>Executes iteratee funcation for every key and value pair in map.</p>
-
-<b>Signature:</b>
-
-```go
-func ForEach[K comparable, V any](m map[K]V, iteratee func(key K, value V))
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-        "d": 4,
-    }
-
-    var sum int
-
-    maputil.ForEach(m, func(_ string, value int) {
-        sum += value
-    })
-
-    fmt.Println(sum)
-
-    // Output:
-    // 10
-}
-```
-
-### <span id="Filter">Filter</span>
-
-<p>Iterates over map, return a new map contains all key and value pairs pass the predicate function.</p>
-
-<b>Signature:</b>
-
-```go
-func Filter[K comparable, V any](m map[K]V, predicate func(key K, value V) bool) map[K]V
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-        "d": 4,
-        "e": 5,
-    }
-    isEven := func(_ string, value int) bool {
-        return value%2 == 0
-    }
-
-    maputil.Filter(m, func(_ string, value int) {
-        sum += value
-    })
-    
-    result := maputil.Filter(m, isEven)
-
-    fmt.Println(result)
-
-    // Output:
-    // map[b:2 d:4]
-}
-```
-
-### <span id="Intersect">Intersect</span>
-
-<p>Iterates over maps, return a new map of key and value pairs in all given maps.</p>
-
-<b>Signature:</b>
-
-```go
-func Intersect[K comparable, V any](maps ...map[K]V) map[K]V
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-    }
-
-    m2 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 6,
-        "d": 7,
-    }
-
-    m3 := map[string]int{
-        "a": 1,
-        "b": 9,
-        "e": 9,
-    }
-
-    result1 := maputil.Intersect(m1)
-    result2 := maputil.Intersect(m1, m2)
-    result3 := maputil.Intersect(m1, m2, m3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // map[a:1 b:2 c:3]
-    // map[a:1 b:2]
-    // map[a:1]
-}
-```
-
-### <span id="Keys">Keys</span>
-
-<p>Returns a slice of the map's keys.</p>
-
-<b>Signature:</b>
-
-```go
-func Keys[K comparable, V any](m map[K]V) []K
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[int]string{
-        1: "a",
-        2: "a",
-        3: "b",
-        4: "c",
-        5: "d",
-    }
-
-    keys := maputil.Keys(m)
-    sort.Ints(keys)
-    
-    fmt.Println(keys)
-
-    // Output:
-    // [1 2 3 4 5]
-}
-```
-
-### <span id="Merge">Merge</span>
-
-<p>Merge maps, next key will overwrite previous key.</p>
-
-<b>Signature:</b>
-
-```go
-func Merge[K comparable, V any](maps ...map[K]V) map[K]V
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[int]string{
-        1: "a",
-        2: "b",
-    }
-    m2 := map[int]string{
-        1: "1",
-        3: "2",
-    }
-
-    result := maputil.Merge(m1, m2)
-
-    fmt.Println(result)
-
-    // Output:
-    // map[1:c 2:b 3:d]
-}
-```
-
-### <span id="Minus">Minus</span>
-
-<p>Creates an map of whose key in mapA but not in mapB.</p>
-
-<b>Signature:</b>
-
-```go
-func Minus[K comparable, V any](mapA, mapB map[K]V) map[K]V
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-    }
-
-    m2 := map[string]int{
-        "a": 11,
-        "b": 22,
-        "d": 33,
-    }
-    
-    result := maputil.Minus(m1, m2)
-
-    fmt.Println(result)
-
-    // Output:
-    // map[c:3]
-}
-```
-
-### <span id="Values">Values</span>
-
-<p>Returns a slice of the map's values.</p>
-
-<b>Signature:</b>
-
-```go
-func Values[K comparable, V any](m map[K]V) []V
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[int]string{
-        1: "a",
-        2: "a",
-        3: "b",
-        4: "c",
-        5: "d",
-    }
-
-    values := maputil.Values(m)
-    sort.Strings(values)
-
-    fmt.Println(values)
-
-    // Output:
-    // [a a b c d]
-}
-```
-
-### <span id="IsDisjoint">IsDisjoint</span>
-
-<p>Checks two maps are disjoint if they have no keys in common</p>
-
-<b>Signature:</b>
-
-```go
-func IsDisjoint[K comparable, V any](mapA, mapB map[K]V) bool
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-    }
-
-    m2 := map[string]int{
-        "d": 22,
-    }
-
-    m3 := map[string]int{
-        "a": 22,
-    }
-
-    result1 := maputil.IsDisjoint(m1, m2)
-    result2 := maputil.IsDisjoint(m1, m3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // true
-    // false
-}
-```

docs/maputil_zh-CN.md

@@ -1,381 +0,0 @@
-# Maputil
-
-maputil 包包括一些操作 map 的函数。
-
-<div STYLE="page-break-after: always;"></div>
-
-## 源码:
-
--   [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
-
-<div STYLE="page-break-after: always;"></div>
-
-## 用法:
-
-```go
-import (
-    "github.com/duke-git/lancet/v2/maputil"
-)
-```
-
-<div STYLE="page-break-after: always;"></div>
-
-## 目录:
-
--   [ForEach](#ForEach)
--   [Filter](#Filter)
--   [Intersect](#Intersect)
--   [Keys](#Keys)
--   [Merge](#Merge)
--   [Minus](#Minus)
--   [Values](#Values)
--   [IsDisjoint](#IsDisjoint)
-
-<div STYLE="page-break-after: always;"></div>
-
-## API 文档:
-
-### <span id="ForEach">ForEach</span>
-
-<p>对map中的每对key和value执行iteratee函数</p>
-
-<b>函数签名:</b>
-
-```go
-func ForEach[K comparable, V any](m map[K]V, iteratee func(key K, value V))
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-        "d": 4,
-    }
-
-    var sum int
-
-    maputil.ForEach(m, func(_ string, value int) {
-        sum += value
-    })
-    
-    fmt.Println(sum)
-
-    // Output:
-    // 10
-}
-```
-
-### <span id="Filter">Filter</span>
-
-<p>迭代map中的每对key和value, 返回符合predicate函数的key, value</p>
-
-<b>函数签名:</b>
-
-```go
-func Filter[K comparable, V any](m map[K]V, predicate func(key K, value V) bool) map[K]V
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-        "d": 4,
-        "e": 5,
-    }
-    isEven := func(_ string, value int) bool {
-        return value%2 == 0
-    }
-
-    maputil.Filter(m, func(_ string, value int) {
-        sum += value
-    })
-    
-    result := Filter(m, isEven)
-
-    fmt.Println(result)
-
-    // Output:
-    // map[b:2 d:4]
-}
-```
-
-### <span id="Intersect">Intersect</span>
-
-<p>多个map的交集操作</p>
-
-<b>函数签名:</b>
-
-```go
-func Intersect[K comparable, V any](maps ...map[K]V) map[K]V
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-    }
-
-    m2 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 6,
-        "d": 7,
-    }
-
-    m3 := map[string]int{
-        "a": 1,
-        "b": 9,
-        "e": 9,
-    }
-
-    result1 := maputil.Intersect(m1)
-    result2 := maputil.Intersect(m1, m2)
-    result3 := maputil.Intersect(m1, m2, m3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // map[a:1 b:2 c:3]
-    // map[a:1 b:2]
-    // map[a:1]
-}
-```
-
-### <span id="Keys">Keys</span>
-
-<p>返回map中所有key的切片</p>
-
-<b>函数签名:</b>
-
-```go
-func Keys[K comparable, V any](m map[K]V) []K
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[int]string{
-        1: "a",
-        2: "a",
-        3: "b",
-        4: "c",
-        5: "d",
-    }
-
-    keys := maputil.Keys(m)
-    sort.Ints(keys)
-    
-    fmt.Println(keys)
-
-    // Output:
-    // [1 2 3 4 5]
-}
-```
-
-### <span id="Merge">Merge</span>
-
-<p>合并多个maps, 相同的key会被后来的key覆盖</p>
-
-<b>函数签名:</b>
-
-```go
-func Merge[K comparable, V any](maps ...map[K]V) map[K]V
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[int]string{
-        1: "a",
-        2: "b",
-    }
-    m2 := map[int]string{
-        1: "1",
-        3: "2",
-    }
-    
-    result := maputil.Merge(m1, m2)
-
-    fmt.Println(result)
-
-    // Output:
-    // map[1:c 2:b 3:d]
-}
-```
-
-### <span id="Minus">Minus</span>
-
-<p>返回一个map，其中的key存在于mapA，不存在于mapB.</p>
-
-<b>函数签名:</b>
-
-```go
-func Minus[K comparable, V any](mapA, mapB map[K]V) map[K]V
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-    }
-
-    m2 := map[string]int{
-        "a": 11,
-        "b": 22,
-        "d": 33,
-    }
-
-    result := maputil.Minus(m1, m2)
-
-    fmt.Println(result)
-
-    // Output:
-    // map[c:3]
-}
-```
-
-### <span id="Values">Values</span>
-
-<p>返回map中所有value的切片</p>
-
-<b>函数签名:</b>
-
-```go
-func Values[K comparable, V any](m map[K]V) []V
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m := map[int]string{
-        1: "a",
-        2: "a",
-        3: "b",
-        4: "c",
-        5: "d",
-    }
-
-    values := maputil.Values(m)
-    sort.Strings(values)
-
-    // Output:
-    // [a a b c d]
-}
-```
-
-### <span id="IsDisjoint">IsDisjoint</span>
-
-<p>验证两个map是否具有不同的key</p>
-
-<b>函数签名:</b>
-
-```go
-func IsDisjoint[K comparable, V any](mapA, mapB map[K]V) bool
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/maputil"
-)
-
-func main() {
-    m1 := map[string]int{
-        "a": 1,
-        "b": 2,
-        "c": 3,
-    }
-
-    m2 := map[string]int{
-        "d": 22,
-    }
-
-    m3 := map[string]int{
-        "a": 22,
-    }
-
-    result1 := maputil.IsDisjoint(m1, m2)
-    result2 := maputil.IsDisjoint(m1, m3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // true
-    // false
-}
-```

docs/mathutil.md

@@ -1,478 +0,0 @@
-# Mathutil
-
-Package mathutil implements some functions for math calculation.
-
-<div STYLE="page-break-after: always;"></div>
-
-## Source:
-
--   [https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go](https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Example:
-
-```go
-import (
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-```
-
-<div STYLE="page-break-after: always;"></div>
-
-## Index
-
--   [Average](#Average)
--   [Exponent](#Exponent)
--   [Fibonacci](#Fibonacci)
--   [Factorial](#Factorial)
--   [Max](#Max)
--   [MaxBy](#MaxBy)
--   [Min](#Min)
--   [MinBy](#MaxBy)
--   [Percent](#Percent)
--   [RoundToFloat](#RoundToFloat)
--   [RoundToString](#RoundToString)
--   [TruncRound](#TruncRound)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Documentation
-
-### <span id="Average">Average</span>
-
-<p>Return average value of numbers. Maybe call RoundToFloat to round result.</p>
-
-<b>Signature:</b>
-
-```go
-func Average[T constraints.Integer | constraints.Float](numbers ...T) T
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Average(1, 2)
-
-    avg := mathutil.Average(1.2, 1.4)
-    result2 := mathutil.RoundToFloat(avg, 1)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 1
-    // 1.3
-}
-```
-
-### <span id="Exponent">Exponent</span>
-
-<p>Calculate x to the nth power.</p>
-
-<b>Signature:</b>
-
-```go
-func Exponent(x, n int64) int64
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Exponent(10, 0)
-    result2 := mathutil.Exponent(10, 1)
-    result3 := mathutil.Exponent(10, 2)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 1
-    // 10
-    // 100
-}
-```
-
-### <span id="Fibonacci">Fibonacci</span>
-
-<p>Calculate the nth number of fibonacci sequence.</p>
-
-<b>Signature:</b>
-
-```go
-func Fibonacci(first, second, n int) int
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Fibonacci(1, 1, 1)
-    result2 := mathutil.Fibonacci(1, 1, 2)
-    result3 := mathutil.Fibonacci(1, 1, 5)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 1
-    // 1
-    // 5
-}
-```
-
-### <span id="Factorial">Factorial</span>
-
-<p>Calculate the factorial of x.</p>
-
-<b>Signature:</b>
-
-```go
-func Factorial(x uint) uint
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Factorial(1)
-    result2 := mathutil.Factorial(2)
-    result3 := mathutil.Factorial(3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 1
-    // 2
-    // 6
-}
-```
-
-### <span id="Max">Max</span>
-
-<p>Return max value of numbers.</p>
-
-<b>Signature:</b>
-
-```go
-func Max[T constraints.Integer | constraints.Float](numbers ...T) T
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Max(1, 2, 3)
-    result2 := mathutil.Max(1.2, 1.4, 1.1, 1.4)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 3
-    // 1.4
-}
-```
-
-### <span id="MaxBy">MaxBy</span>
-
-<p>Return the maximum value of a slice using the given comparator function.</p>
-
-<b>Signature:</b>
-
-```go
-func MaxBy[T any](slice []T, comparator func(T, T) bool) T
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.MaxBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
-        return len(v1) > len(v2)
-    })
-
-    result2 := mathutil.MaxBy([]string{"abd", "abc", "ab"}, func(v1, v2 string) bool {
-        return len(v1) > len(v2)
-    })
-
-    result3 := mathutil.MaxBy([]string{}, func(v1, v2 string) bool {
-        return len(v1) > len(v2)
-    })
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // abc
-    // abd
-    //
-}
-```
-
-### <span id="Min">Min</span>
-
-<p>Return the minimum value of numbers.</p>
-
-<b>Signature:</b>
-
-```go
-func Min[T constraints.Integer | constraints.Float](numbers ...T) T
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Min(1, 2, 3)
-    result2 := mathutil.Min(1.2, 1.4, 1.1, 1.4)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 1
-    // 1.1
-}
-```
-
-### <span id="MinBy">MinBy</span>
-
-<p>Return the minimum value of a slice using the given comparator function.</p>
-
-<b>Signature:</b>
-
-```go
-func MinBy[T any](slice []T, comparator func(T, T) bool) T
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.MinBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
-        return len(v1) < len(v2)
-    })
-
-    result2 := mathutil.MinBy([]string{"ab", "ac", "abc"}, func(v1, v2 string) bool {
-        return len(v1) < len(v2)
-    })
-
-    result3 := mathutil.MinBy([]string{}, func(v1, v2 string) bool {
-        return len(v1) < len(v2)
-    })
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // a
-    // ab
-    //
-}
-```
-
-### <span id="Percent">Percent</span>
-
-<p>calculate the percentage of val to total, retain n decimal places.</p>
-
-<b>Signature:</b>
-
-```go
-func Percent(val, total float64, n int) float64
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Percent(1, 2, 2)
-    result2 := mathutil.Percent(0.1, 0.3, 2)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 0.5
-    // 0.33
-}
-```
-
-### <span id="RoundToFloat">RoundToFloat</span>
-
-<p>Round float up to n decimal places.</p>
-
-<b>Signature:</b>
-
-```go
-func RoundToFloat(x float64, n int) float64
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.RoundToFloat(0.124, 2)
-    result2 := mathutil.RoundToFloat(0.125, 2)
-    result3 := mathutil.RoundToFloat(0.125, 3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 0.12
-    // 0.13
-    // 0.125
-}
-```
-
-### <span id="RoundToString">RoundToString</span>
-
-<p>Round float up to n decimal places. will return string.</p>
-
-<b>Signature:</b>
-
-```go
-func RoundToString(x float64, n int) string
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.RoundToString(0.124, 2)
-    result2 := mathutil.RoundToString(0.125, 2)
-    result3 := mathutil.RoundToString(0.125, 3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 0.12
-    // 0.13
-    // 0.125
-}
-```
-
-### <span id="TruncRound">TruncRound</span>
-
-<p>Round float off n decimal places.</p>
-
-<b>Signature:</b>
-
-```go
-func TruncRound(x float64, n int) float64
-```
-
-<b>Example:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.TruncRound(0.124, 2)
-    result2 := mathutil.TruncRound(0.125, 2)
-    result3 := mathutil.TruncRound(0.125, 3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 0.12
-    // 0.12
-    // 0.125
-}
-```

docs/mathutil_zh-CN.md

@@ -1,478 +0,0 @@
-# Mathutil
-
-mathutil 包实现了一些数学计算的函数.
-
-<div STYLE="page-break-after: always;"></div>
-
-## 源码:
-
--   [https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go](https://github.com/duke-git/lancet/blob/main/mathutil/mathutil.go)
-
-<div STYLE="page-break-after: always;"></div>
-
-## 用法:
-
-```go
-import (
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-```
-
-<div STYLE="page-break-after: always;"></div>
-
-## 目录
-
--   [Average](#Average)
--   [Exponent](#Exponent)
--   [Fibonacci](#Fibonacci)
--   [Factorial](#Factorial)
--   [Max](#Max)
--   [MaxBy](#MaxBy)
--   [Min](#Min)
--   [MinBy](#MaxBy)
--   [Percent](#Percent)
--   [RoundToFloat](#RoundToFloat)
--   [RoundToString](#RoundToString)
--   [TruncRound](#TruncRound)
-
-<div STYLE="page-break-after: always;"></div>
-
-## Documentation
-
-### <span id="Average">Average</span>
-
-<p>计算平均数. 可能需要对结果调用RoundToFloat方法四舍五入</p>
-
-<b>函数签名:</b>
-
-```go
-func Average[T constraints.Integer | constraints.Float](numbers ...T) T
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Average(1, 2)
-
-    avg := mathutil.Average(1.2, 1.4)
-    result2 := mathutil.RoundToFloat(avg, 1)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 1
-    // 1.3
-}
-```
-
-### <span id="Exponent">Exponent</span>
-
-<p>指数计算（x的n次方）</p>
-
-<b>函数签名:</b>
-
-```go
-func Exponent(x, n int64) int64
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Exponent(10, 0)
-    result2 := mathutil.Exponent(10, 1)
-    result3 := mathutil.Exponent(10, 2)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 1
-    // 10
-    // 100
-}
-```
-
-### <span id="Fibonacci">Fibonacci</span>
-
-<p>计算斐波那契数列的第n个数</p>
-
-<b>函数签名:</b>
-
-```go
-func Fibonacci(first, second, n int) int
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Fibonacci(1, 1, 1)
-    result2 := mathutil.Fibonacci(1, 1, 2)
-    result3 := mathutil.Fibonacci(1, 1, 5)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 1
-    // 1
-    // 5
-}
-```
-
-### <span id="Factorial">Factorial</span>
-
-<p>计算阶乘</p>
-
-<b>函数签名:</b>
-
-```go
-func Factorial(x uint) uint
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Factorial(1)
-    result2 := mathutil.Factorial(2)
-    result3 := mathutil.Factorial(3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 1
-    // 2
-    // 6
-}
-```
-
-### <span id="Max">Max</span>
-
-<p>返回参数中的最大数</p>
-
-<b>函数签名:</b>
-
-```go
-func Max[T constraints.Integer | constraints.Float](numbers ...T) T
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Max(1, 2, 3)
-    result2 := mathutil.Max(1.2, 1.4, 1.1, 1.4)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 3
-    // 1.4
-}
-```
-
-### <span id="MaxBy">MaxBy</span>
-
-<p>使用给定的比较器函数返回切片的最大值</p>
-
-<b>函数签名:</b>
-
-```go
-func MaxBy[T any](slice []T, comparator func(T, T) bool) T
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.MaxBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
-        return len(v1) > len(v2)
-    })
-
-    result2 := mathutil.MaxBy([]string{"abd", "abc", "ab"}, func(v1, v2 string) bool {
-        return len(v1) > len(v2)
-    })
-
-    result3 := mathutil.MaxBy([]string{}, func(v1, v2 string) bool {
-        return len(v1) > len(v2)
-    })
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // abc
-    // abd
-    //
-}
-```
-
-### <span id="Min">Min</span>
-
-<p>返回参数中的最小数</p>
-
-<b>函数签名:</b>
-
-```go
-func Min[T constraints.Integer | constraints.Float](numbers ...T) T
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Min(1, 2, 3)
-    result2 := mathutil.Min(1.2, 1.4, 1.1, 1.4)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 1
-    // 1.1
-}
-```
-
-### <span id="MinBy">MinBy</span>
-
-<p>使用给定的比较器函数返回切片的最小值</p>
-
-<b>函数签名:</b>
-
-```go
-func MinBy[T any](slice []T, comparator func(T, T) bool) T
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.MinBy([]string{"a", "ab", "abc"}, func(v1, v2 string) bool {
-        return len(v1) < len(v2)
-    })
-
-    result2 := mathutil.MinBy([]string{"ab", "ac", "abc"}, func(v1, v2 string) bool {
-        return len(v1) < len(v2)
-    })
-
-    result3 := mathutil.MinBy([]string{}, func(v1, v2 string) bool {
-        return len(v1) < len(v2)
-    })
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // a
-    // ab
-    //
-}
-```
-
-### <span id="Percent">Percent</span>
-
-<p>计算百分比，保留n位小数</p>
-
-<b>函数签名:</b>
-
-```go
-func Percent(val, total float64, n int) float64
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.Percent(1, 2, 2)
-    result2 := mathutil.Percent(0.1, 0.3, 2)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-
-    // Output:
-    // 0.5
-    // 0.33
-}
-```
-
-### <span id="RoundToFloat">RoundToFloat</span>
-
-<p>四舍五入，保留n位小数</p>
-
-<b>函数签名:</b>
-
-```go
-func RoundToFloat(x float64, n int) float64
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.RoundToFloat(0.124, 2)
-    result2 := mathutil.RoundToFloat(0.125, 2)
-    result3 := mathutil.RoundToFloat(0.125, 3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 0.12
-    // 0.13
-    // 0.125
-}
-```
-
-### <span id="RoundToString">RoundToString</span>
-
-<p>四舍五入，保留n位小数，返回字符串</p>
-
-<b>函数签名:</b>
-
-```go
-func RoundToString(x float64, n int) string
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.RoundToString(0.124, 2)
-    result2 := mathutil.RoundToString(0.125, 2)
-    result3 := mathutil.RoundToString(0.125, 3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 0.12
-    // 0.13
-    // 0.125
-}
-```
-
-### <span id="TruncRound">TruncRound</span>
-
-<p>截短n位小数（不进行四舍五入）</p>
-
-<b>函数签名:</b>
-
-```go
-func TruncRound(x float64, n int) float64
-```
-
-<b>示例:</b>
-
-```go
-package main
-
-import (
-    "fmt"
-    "github.com/duke-git/lancet/v2/mathutil"
-)
-
-func main() {
-    result1 := mathutil.TruncRound(0.124, 2)
-    result2 := mathutil.TruncRound(0.125, 2)
-    result3 := mathutil.TruncRound(0.125, 3)
-
-    fmt.Println(result1)
-    fmt.Println(result2)
-    fmt.Println(result3)
-
-    // Output:
-    // 0.12
-    // 0.12
-    // 0.125
-}
-```

docs/olddocs/convertor.md

@@ -39,6 +39,10 @@ import (
 -   [EncodeByte](#EncodeByte)
 -   [DecodeByte](#DecodeByte)
 -   [DeepClone](#DeepClone)
+-   [CopyProperties](#CopyProperties)
+-   [ToInterface](#ToInterface)
+-   [Utf8ToGbk](#Utf8ToGbk)
+-   [GbkToUtf8](#GbkToUtf8)
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -628,7 +632,6 @@ func main() {
 }
 ```
 
-
 ### <span id="DeepClone">DeepClone</span>
 
 <p>Creates a deep copy of passed item, can't clone unexported field of struct.</p>
@@ -651,44 +654,225 @@ import (
 
 func main() {
     type Struct struct {
-		Str        string
-		Int        int
-		Float      float64
-		Bool       bool
-		Nil        interface{}
-		unexported string
-	}
+        Str        string
+        Int        int
+        Float      float64
+        Bool       bool
+        Nil        interface{}
+        unexported string
+    }
 
-	cases := []interface{}{
-		true,
-		1,
-		0.1,
-		map[string]int{
-			"a": 1,
-			"b": 2,
-		},
-		&Struct{
-			Str:   "test",
-			Int:   1,
-			Float: 0.1,
-			Bool:  true,
-			Nil:   nil,
-			// unexported: "can't be cloned",
-		},
-	}
+    cases := []interface{}{
+        true,
+        1,
+        0.1,
+        map[string]int{
+            "a": 1,
+            "b": 2,
+        },
+        &Struct{
+            Str:   "test",
+            Int:   1,
+            Float: 0.1,
+            Bool:  true,
+            Nil:   nil,
+            // unexported: "can't be cloned",
+        },
+    }
 
-	for _, item := range cases {
-		cloned := convertor.DeepClone(item)
+    for _, item := range cases {
+        cloned := convertor.DeepClone(item)
 
-		isPointerEqual := &cloned == &item
-		fmt.Println(cloned, isPointerEqual)
-	}
+        isPointerEqual := &cloned == &item
+        fmt.Println(cloned, isPointerEqual)
+    }
 
-	// Output:
-	// true false
-	// 1 false
-	// 0.1 false
-	// map[a:1 b:2] false
-	// &{test 1 0.1 true <nil> } false
+    // Output:
+    // true false
+    // 1 false
+    // 0.1 false
+    // map[a:1 b:2] false
+    // &{test 1 0.1 true <nil> } false
+}
+```
+
+### <span id="CopyProperties">CopyProperties</span>
+
+<p>Copies each field from the source struct into the destination struct. Use json.Marshal/Unmarshal, so json tag should be set for fields of dst and src struct.</p>
+
+<b>Signature:</b>
+
+```go
+func CopyProperties[T, U any](dst T, src U) (err error)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    type Disk struct {
+        Name    string  `json:"name"`
+        Total   string  `json:"total"`
+        Used    string  `json:"used"`
+        Percent float64 `json:"percent"`
+    }
+
+    type DiskVO struct {
+        Name    string  `json:"name"`
+        Total   string  `json:"total"`
+        Used    string  `json:"used"`
+        Percent float64 `json:"percent"`
+    }
+
+    type Indicator struct {
+        Id      string    `json:"id"`
+        Ip      string    `json:"ip"`
+        UpTime  string    `json:"upTime"`
+        LoadAvg string    `json:"loadAvg"`
+        Cpu     int       `json:"cpu"`
+        Disk    []Disk    `json:"disk"`
+        Stop    chan bool `json:"-"`
+    }
+
+    type IndicatorVO struct {
+        Id      string   `json:"id"`
+        Ip      string   `json:"ip"`
+        UpTime  string   `json:"upTime"`
+        LoadAvg string   `json:"loadAvg"`
+        Cpu     int64    `json:"cpu"`
+        Disk    []DiskVO `json:"disk"`
+    }
+
+    indicator := &Indicator{Id: "001", Ip: "127.0.0.1", Cpu: 1, Disk: []Disk{
+        {Name: "disk-001", Total: "100", Used: "1", Percent: 10},
+        {Name: "disk-002", Total: "200", Used: "1", Percent: 20},
+        {Name: "disk-003", Total: "300", Used: "1", Percent: 30},
+    }}
+
+    indicatorVO := IndicatorVO{}
+
+    err := convertor.CopyProperties(&indicatorVO, indicator)
+
+    if err != nil {
+        return
+    }
+
+    fmt.Println(indicatorVO.Id)
+    fmt.Println(indicatorVO.Ip)
+    fmt.Println(len(indicatorVO.Disk))
+
+    // Output:
+    // 001
+    // 127.0.0.1
+    // 3
+}
+```
+
+### <span id="ToInterface">ToInterface</span>
+
+<p>Converts reflect value to its interface type.</p>
+
+<b>Signature:</b>
+
+```go
+func ToInterface(v reflect.Value) (value interface{}, ok bool)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    val := reflect.ValueOf("abc")
+    iVal, ok := convertor.ToInterface(val)
+
+    fmt.Printf("%T\n", iVal)
+    fmt.Printf("%v\n", iVal)
+    fmt.Println(ok)
+
+    // Output:
+    // string
+    // abc
+    // true    
+}
+```
+
+### <span id="Utf8ToGbk">Utf8ToGbk</span>
+
+<p>Converts utf8 encoding data to GBK encoding data.</p>
+
+<b>Signature:</b>
+
+```go
+func Utf8ToGbk(bs []byte) ([]byte, error)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+    "github.com/duke-git/lancet/v2/validator"
+)
+
+func main() {
+    utf8Data := []byte("hello")
+    gbkData, _ := convertor.Utf8ToGbk(utf8Data)
+
+    fmt.Println(utf8.Valid(utf8Data))
+    fmt.Println(validator.IsGBK(gbkData))
+
+    // Output:
+    // true
+    // true   
+}
+```
+
+### <span id="GbkToUtf8">GbkToUtf8</span>
+
+<p>Converts GBK encoding data to utf8 encoding data.</p>
+
+<b>Signature:</b>
+
+```go
+func GbkToUtf8(bs []byte) ([]byte, error)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    gbkData, _ := convertor.Utf8ToGbk([]byte("hello"))
+    utf8Data, _ := convertor.GbkToUtf8(gbkData)
+
+    fmt.Println(utf8.Valid(utf8Data))
+    fmt.Println(string(utf8Data))
+
+    // Output:
+    // true
+    // hello   
 }
 ```

docs/olddocs/convertor_zh-CN.md

@@ -39,6 +39,10 @@ import (
 -   [EncodeByte](#EncodeByte)
 -   [DecodeByte](#DecodeByte)
 -   [DeepClone](#DeepClone)
+-   [CopyProperties](#CopyProperties)
+-   [ToInterface](#ToInterface)
+-   [Utf8ToGbk](#Utf8ToGbk)
+-   [GbkToUtf8](#GbkToUtf8)
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -650,44 +654,225 @@ import (
 
 func main() {
     type Struct struct {
-		Str        string
-		Int        int
-		Float      float64
-		Bool       bool
-		Nil        interface{}
-		unexported string
-	}
+        Str        string
+        Int        int
+        Float      float64
+        Bool       bool
+        Nil        interface{}
+        unexported string
+    }
 
-	cases := []interface{}{
-		true,
-		1,
-		0.1,
-		map[string]int{
-			"a": 1,
-			"b": 2,
-		},
-		&Struct{
-			Str:   "test",
-			Int:   1,
-			Float: 0.1,
-			Bool:  true,
-			Nil:   nil,
-			// unexported: "can't be cloned",
-		},
-	}
+    cases := []interface{}{
+        true,
+        1,
+        0.1,
+        map[string]int{
+            "a": 1,
+            "b": 2,
+        },
+        &Struct{
+            Str:   "test",
+            Int:   1,
+            Float: 0.1,
+            Bool:  true,
+            Nil:   nil,
+            // unexported: "can't be cloned",
+        },
+    }
 
-	for _, item := range cases {
-		cloned := convertor.DeepClone(item)
+    for _, item := range cases {
+        cloned := convertor.DeepClone(item)
 
-		isPointerEqual := &cloned == &item
-		fmt.Println(cloned, isPointerEqual)
-	}
+        isPointerEqual := &cloned == &item
+        fmt.Println(cloned, isPointerEqual)
+    }
 
-	// Output:
-	// true false
-	// 1 false
-	// 0.1 false
-	// map[a:1 b:2] false
-	// &{test 1 0.1 true <nil> } false
+    // Output:
+    // true false
+    // 1 false
+    // 0.1 false
+    // map[a:1 b:2] false
+    // &{test 1 0.1 true <nil> } false
 }
-```
+```
+
+### <span id="CopyProperties">CopyProperties</span>
+
+<p>拷贝不同结构体之间的同名字段。使用json.Marshal序列化，需要设置dst和src struct字段的json tag。</p>
+
+<b>函数签名:</b>
+
+```go
+func CopyProperties[T, U any](dst T, src U) (err error)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    type Disk struct {
+        Name    string  `json:"name"`
+        Total   string  `json:"total"`
+        Used    string  `json:"used"`
+        Percent float64 `json:"percent"`
+    }
+
+    type DiskVO struct {
+        Name    string  `json:"name"`
+        Total   string  `json:"total"`
+        Used    string  `json:"used"`
+        Percent float64 `json:"percent"`
+    }
+
+    type Indicator struct {
+        Id      string    `json:"id"`
+        Ip      string    `json:"ip"`
+        UpTime  string    `json:"upTime"`
+        LoadAvg string    `json:"loadAvg"`
+        Cpu     int       `json:"cpu"`
+        Disk    []Disk    `json:"disk"`
+        Stop    chan bool `json:"-"`
+    }
+
+    type IndicatorVO struct {
+        Id      string   `json:"id"`
+        Ip      string   `json:"ip"`
+        UpTime  string   `json:"upTime"`
+        LoadAvg string   `json:"loadAvg"`
+        Cpu     int64    `json:"cpu"`
+        Disk    []DiskVO `json:"disk"`
+    }
+
+    indicator := &Indicator{Id: "001", Ip: "127.0.0.1", Cpu: 1, Disk: []Disk{
+        {Name: "disk-001", Total: "100", Used: "1", Percent: 10},
+        {Name: "disk-002", Total: "200", Used: "1", Percent: 20},
+        {Name: "disk-003", Total: "300", Used: "1", Percent: 30},
+    }}
+
+    indicatorVO := IndicatorVO{}
+
+    err := convertor.CopyProperties(&indicatorVO, indicator)
+
+    if err != nil {
+        return
+    }
+
+    fmt.Println(indicatorVO.Id)
+    fmt.Println(indicatorVO.Ip)
+    fmt.Println(len(indicatorVO.Disk))
+
+    // Output:
+    // 001
+    // 127.0.0.1
+    // 3
+}
+```
+
+### <span id="ToInterface">ToInterface</span>
+
+<p>将反射值转换成对应的interface类型。</p>
+
+<b>函数签名:</b>
+
+```go
+func ToInterface(v reflect.Value) (value interface{}, ok bool)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    val := reflect.ValueOf("abc")
+    iVal, ok := convertor.ToInterface(val)
+
+    fmt.Printf("%T\n", iVal)
+    fmt.Printf("%v\n", iVal)
+    fmt.Println(ok)
+
+    // Output:
+    // string
+    // abc
+    // true
+}
+```
+
+### <span id="Utf8ToGbk">Utf8ToGbk</span>
+
+<p>utf8编码转GBK编码。</p>
+
+<b>函数签名:</b>
+
+```go
+func Utf8ToGbk(bs []byte) ([]byte, error)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+    "github.com/duke-git/lancet/v2/validator"
+)
+
+func main() {
+    utf8Data := []byte("hello")
+    gbkData, _ := convertor.Utf8ToGbk(utf8Data)
+
+    fmt.Println(utf8.Valid(utf8Data))
+    fmt.Println(validator.IsGBK(gbkData))
+
+    // Output:
+    // true
+    // true
+}
+```
+
+### <span id="GbkToUtf8">GbkToUtf8</span>
+
+<p>GBK编码转utf8编码。</p>
+
+<b>函数签名:</b>
+
+```go
+func GbkToUtf8(bs []byte) ([]byte, error)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/convertor"
+)
+
+func main() {
+    gbkData, _ := convertor.Utf8ToGbk([]byte("hello"))
+    utf8Data, _ := convertor.GbkToUtf8(gbkData)
+
+    fmt.Println(utf8.Valid(utf8Data))
+    fmt.Println(string(utf8Data))
+
+    // Output:
+    // true
+    // hello
+}
+```

docs/olddocs/cryptor.md

@@ -6,7 +6,7 @@ Package cryptor contains some functions for data encryption and decryption. Supp
 ## Source:
 
 - [https://github.com/duke-git/lancet/blob/main/cryptor/basic.go](https://github.com/duke-git/lancet/blob/main/cryptor/basic.go)
-- [https://github.com/duke-git/lancet/blob/main/cryptor/encrypt.go](https://github.com/duke-git/lancet/blob/main/cryptor/encrypt.go)
+- [https://github.com/duke-git/lancet/blob/main/cryptor/crypto.go](https://github.com/duke-git/lancet/blob/main/cryptor/crypto.go)
 
 
 
@@ -44,14 +44,24 @@ import (
 - [DesOfbEncrypt](#DesOfbEncrypt)
 - [DesOfbDecrypt](#DesOfbDecrypt)
 - [HmacMd5](#HmacMd5)
+- [HmacMd5WithBase64](#HmacMd5WithBase64)
 - [HmacSha1](#HmacSha1)
+- [HmacSha1WithBase64](#HmacSha1WithBase64)
 - [HmacSha256](#HmacSha256)
+- [HmacSha256WithBase64](#HmacSha256WithBase64)
 - [HmacSha512](#HmacSha512)
+- [HmacSha512WithBase64](#HmacSha512WithBase64)
 - [Md5String](#Md5String)
+- [Md5StringWithBase64](#Md5StringWithBase64)
+- [Md5Byte](#Md5Byte)
+- [Md5ByteWithBase64](#Md5ByteWithBase64)
 - [Md5File](#Md5File)
 - [Sha1](#Sha1)
+- [Sha1WithBase64](#Sha1WithBase64)
 - [Sha256](#Sha256)
+- [Sha256WithBase64](#Sha256WithBase64)
 - [Sha512](#Sha512)
+- [Sha512WithBase64](#Sha512WithBase64)
 - [GenerateRsaKey](#GenerateRsaKey)
 - [RsaEncrypt](#RsaEncrypt)
 - [RsaDecrypt](#RsaDecrypt)
@@ -729,7 +739,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func HmacMd5(data, key string) string
+func HmacMd5(str, key string) string
 ```
 
 <b>Example:</b>
@@ -743,7 +753,7 @@ import (
 )
 
 func main() {
-      str := "hello"
+    str := "hello"
     key := "12345"
 
     hms := cryptor.HmacMd5(str, key)
@@ -753,6 +763,39 @@ func main() {
     // e834306eab892d872525d4918a7a639a
 }
 ```
+
+### <span id="HmacMd5WithBase64">HmacMd5WithBase64</span>
+
+<p>Get the md5 hmac hash of base64 string.</p>
+
+<b>Signature:</b>
+
+```go
+func HmacMd5WithBase64(str, key string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+    key := "12345"
+
+    hms := cryptor.HmacMd5WithBase64(str, key)
+    fmt.Println(hms)
+
+    // Output:
+    // 6DQwbquJLYclJdSRinpjmg==
+}
+```
+
 ### <span id="HmacSha1">HmacSha1</span>
 
 <p>Get the sha1 hmac hash of string.</p>
@@ -760,7 +803,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func HmacSha1(data, key string) string
+func HmacSha1(str, key string) string
 ```
 
 <b>Example:</b>
@@ -784,6 +827,39 @@ func main() {
     // 5c6a9db0cccb92e36ed0323fd09b7f936de9ace0
 }
 ```
+
+### <span id="HmacSha1WithBase64">HmacSha1WithBase64</span>
+
+<p>Return the hmac hash of string use sha1 with base64.</p>
+
+<b>Signature:</b>
+
+```go
+func HmacSha1WithBase64(str, key string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+    key := "12345"
+
+    hms := cryptor.HmacSha1WithBase64(str, key)
+    fmt.Println(hms)
+
+    // Output:
+    // XGqdsMzLkuNu0DI/0Jt/k23prOA=
+}
+```
+
 ### <span id="HmacSha256">HmacSha256</span>
 
 <p>Get the sha256 hmac hash of string</p>
@@ -791,7 +867,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func HmacSha256(data, key string) string
+func HmacSha256(str, key string) string
 ```
 
 <b>Example:</b>
@@ -816,6 +892,38 @@ func main() {
 }
 ```
 
+### <span id="HmacSha256WithBase64">HmacSha256WithBase64</span>
+
+<p>Return the hmac hash of string use sha256 with base64.</p>
+
+<b>Signature:</b>
+
+```go
+func HmacSha256WithBase64(str, key string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+    key := "12345"
+
+    hms := cryptor.HmacSha256WithBase64(str, key)
+    fmt.Println(hms)
+
+    // Output:
+    // MVu5PE6YmGK6Ccti4F1zpfN2yzbw14btqwwyDQWf3nU=
+}
+```
+
 ### <span id="HmacSha512">HmacSha512</span>
 
 <p>Get the sha512 hmac hash of string.</p>
@@ -823,7 +931,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func HmacSha512(data, key string) string
+func HmacSha512(str, key string) string
 ```
 
 <b>Example:</b>
@@ -848,6 +956,38 @@ func main() {
 }
 ```
 
+### <span id="HmacSha512WithBase64">HmacSha512WithBase64</span>
+
+<p>Return the hmac hash of string use sha512 with base64.</p>
+
+<b>Signature:</b>
+
+```go
+func HmacSha512WithBase64(str, key string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+	key := "12345"
+
+	hms := cryptor.HmacSha512WithBase64(str, key)
+	fmt.Println(hms)
+
+	// Output:
+	// 3Y8SkKndI9NU4lJtmi6c6M///dN8syCADRxsE9Lvw2Mog3ahlsVFja9T+OGqa0Wm2FYwPVwKIGS/+XhYYdSM/A==
+}
+```
+
 
 ### <span id="Md5String">Md5String</span>
 
@@ -880,6 +1020,93 @@ func main() {
 }
 ```
 
+### <span id="Md5StringWithBase64">Md5StringWithBase64</span>
+
+<p>Return the md5 value of string with base64.</p>
+
+<b>Signature:</b>
+
+```go
+func Md5StringWithBase64(s string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    md5Str := cryptor.Md5StringWithBase64("hello")
+	fmt.Println(md5Str)
+
+	// Output:
+	// XUFAKrxLKna5cZ2REBfFkg==
+}
+```
+
+### <span id="Md5Byte">Md5Byte</span>
+
+<p>Return the md5 string of byte slice.</p>
+
+<b>Signature:</b>
+
+```go
+func Md5Byte(data []byte) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    md5Str := cryptor.Md5Byte([]byte{'a'})
+	fmt.Println(md5Str)
+
+	// Output:
+	// 0cc175b9c0f1b6a831c399e269772661
+}
+```
+
+### <span id="Md5ByteWithBase64">Md5ByteWithBase64</span>
+
+<p>Return the md5 string of byte slice with base64.</p>
+
+<b>Signature:</b>
+
+```go
+func Md5ByteWithBase64(data []byte) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    md5Str := cryptor.Md5ByteWithBase64([]byte("hello"))
+	fmt.Println(md5Str)
+
+	// Output:
+	// XUFAKrxLKna5cZ2REBfFkg==
+}
+```
+
 ### <span id="Md5File">Md5File</span>
 
 <p>Get the md5 value of file.</p>
@@ -913,7 +1140,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func Sha1(data string) string
+func Sha1(str string) string
 ```
 
 <b>Example:</b>
@@ -937,6 +1164,35 @@ func main() {
 }
 ```
 
+### <span id="Sha1WithBase64">Sha1WithBase64</span>
+
+<p>Return the sha1 value (SHA-1 hash algorithm) of base64 string.</p>
+
+<b>Signature:</b>
+
+```go
+func Sha1WithBase64(str string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    result := cryptor.Sha1WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// qvTGHdzF6KLavt4PO0gs2a6pQ00=
+}
+```
+
 ### <span id="Sha256">Sha256</span>
 
 <p>Get the sha256 value of string.</p>
@@ -944,7 +1200,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func Sha256(data string) string
+func Sha256(str string) string
 ```
 
 <b>Example:</b>
@@ -968,6 +1224,35 @@ func main() {
 }
 ```
 
+### <span id="Sha256WithBase64">Sha256WithBase64</span>
+
+<p>Return the sha256 value (SHA256 hash algorithm) of base64 string.</p>
+
+<b>Signature:</b>
+
+```go
+func Sha256WithBase64(str string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    result := cryptor.Sha256WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ=
+}
+```
+
 ### <span id="Sha512">Sha512</span>
 
 <p>Get the sha512 value of string.</p>
@@ -975,7 +1260,7 @@ func main() {
 <b>Signature:</b>
 
 ```go
-func Sha512(data string) string
+func Sha512(str string) string
 ```
 
 <b>Example:</b>
@@ -999,6 +1284,35 @@ func main() {
 }
 ```
 
+### <span id="Sha512WithBase64">Sha512WithBase64</span>
+
+<p>Get the sha512 value of string with base64.</p>
+
+<b>Signature:</b>
+
+```go
+func Sha512WithBase64(str string) string
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    result := cryptor.Sha512WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// m3HSJL1i83hdltRq0+o9czGb+8KJDKra4t/3JRlnPKcjI8PZm6XBHXx6zG4UuMXaDEZjR1wuXDre9G9zvN7AQw==
+}
+```
+
 ### <span id="GenerateRsaKey">GenerateRsaKey</span>
 
 <p>Create the rsa public and private key file in current directory.</p>

docs/olddocs/cryptor_zh-CN.md

@@ -6,7 +6,7 @@ cryptor加密包支持数据加密和解密，获取md5，hash值。支持base64
 ## 源码:
 
 - [https://github.com/duke-git/lancet/blob/main/cryptor/basic.go](https://github.com/duke-git/lancet/blob/main/cryptor/basic.go)
-- [https://github.com/duke-git/lancet/blob/main/cryptor/encrypt.go](https://github.com/duke-git/lancet/blob/main/cryptor/encrypt.go)
+- [https://github.com/duke-git/lancet/blob/main/cryptor/crypto.go](https://github.com/duke-git/lancet/blob/main/cryptor/crypto.go)
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -41,14 +41,24 @@ import (
 - [DesOfbEncrypt](#DesOfbEncrypt)
 - [DesOfbDecrypt](#DesOfbDecrypt)
 - [HmacMd5](#HmacMd5)
+- [HmacMd5WithBase64](#HmacMd5WithBase64)
 - [HmacSha1](#HmacSha1)
+- [HmacSha1WithBase64](#HmacSha1WithBase64)
 - [HmacSha256](#HmacSha256)
+- [HmacSha256WithBase64](#HmacSha256WithBase64)
 - [HmacSha512](#HmacSha512)
+- [HmacSha512WithBase64](#HmacSha512WithBase64)
 - [Md5String](#Md5String)
+- [Md5StringWithBase64](#Md5StringWithBase64)
+- [Md5Byte](#Md5Byte)
+- [Md5ByteWithBase64](#Md5ByteWithBase64)
 - [Md5File](#Md5File)
 - [Sha1](#Sha1)
+- [Sha1WithBase64](#Sha1WithBase64)
 - [Sha256](#Sha256)
+- [Sha256WithBase64](#Sha256WithBase64)
 - [Sha512](#Sha512)
+- [Sha512WithBase64](#Sha512WithBase64)
 - [GenerateRsaKey](#GenerateRsaKey)
 - [RsaEncrypt](#RsaEncrypt)
 - [RsaDecrypt](#RsaDecrypt)
@@ -728,7 +738,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func HmacMd5(data, key string) string
+func HmacMd5(str, key string) string
 ```
 
 <b>示例:</b>
@@ -742,7 +752,7 @@ import (
 )
 
 func main() {
-      str := "hello"
+    str := "hello"
     key := "12345"
 
     hms := cryptor.HmacMd5(str, key)
@@ -752,14 +762,46 @@ func main() {
     // e834306eab892d872525d4918a7a639a
 }
 ```
-### <span id="HmacSha1">HmacSha1</span>
 
-<p>获取字符串sha1 hmac值。</p>
+### <span id="HmacMd5WithBase64">HmacMd5WithBase64</span>
+
+<p>获取字符串md5 hmac base64字符串值。</p>
 
 <b>函数签名:</b>
 
 ```go
-func HmacSha1(data, key string) string
+func HmacMd5WithBase64(str, key string) string
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+    key := "12345"
+
+    hms := cryptor.HmacMd5WithBase64(str, key)
+    fmt.Println(hms)
+
+    // Output:
+    // 6DQwbquJLYclJdSRinpjmg==
+}
+```
+### <span id="HmacSha1">HmacSha1</span>
+
+<p>获取字符串的sha1 hmac值。</p>
+
+<b>函数签名:</b>
+
+```go
+func HmacSha1(str, key string) string
 ```
 
 <b>示例:</b>
@@ -783,6 +825,40 @@ func main() {
     // 5c6a9db0cccb92e36ed0323fd09b7f936de9ace0
 }
 ```
+
+### <span id="HmacSha1WithBase64">HmacSha1WithBase64</span>
+
+<p>获取字符串的sha1 base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func HmacSha1WithBase64(str, key string) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+    key := "12345"
+
+    hms := cryptor.HmacSha1WithBase64(str, key)
+    fmt.Println(hms)
+
+    // Output:
+    // XGqdsMzLkuNu0DI/0Jt/k23prOA=
+}
+```
+
+
 ### <span id="HmacSha256">HmacSha256</span>
 
 <p>获取字符串sha256 hmac值。</p>
@@ -790,7 +866,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func HmacSha256(data, key string) string
+func HmacSha256(str, key string) string
 ```
 
 <b>示例:</b>
@@ -815,6 +891,38 @@ func main() {
 }
 ```
 
+### <span id="HmacSha256WithBase64">HmacSha256WithBase64</span>
+
+<p>获取字符串sha256 hmac base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func HmacSha256WithBase64(str, key string) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+    key := "12345"
+
+    hms := cryptor.HmacSha256WithBase64(str, key)
+    fmt.Println(hms)
+
+    // Output:
+    // MVu5PE6YmGK6Ccti4F1zpfN2yzbw14btqwwyDQWf3nU=
+}
+```
+
 ### <span id="HmacSha512">HmacSha512</span>
 
 <p>获取字符串sha512 hmac值。</p>
@@ -822,7 +930,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func HmacSha512(data, key string) string
+func HmacSha512(str, key string) string
 ```
 
 <b>示例:</b>
@@ -847,6 +955,38 @@ func main() {
 }
 ```
 
+### <span id="HmacSha512WithBase64">HmacSha512WithBase64</span>
+
+<p>获取字符串sha512 hmac base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func HmacSha512WithBase64(str, key string) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    str := "hello"
+	key := "12345"
+
+	hms := cryptor.HmacSha512WithBase64(str, key)
+	fmt.Println(hms)
+
+	// Output:
+	// 3Y8SkKndI9NU4lJtmi6c6M///dN8syCADRxsE9Lvw2Mog3ahlsVFja9T+OGqa0Wm2FYwPVwKIGS/+XhYYdSM/A==
+}
+```
+
 
 ### <span id="Md5String">Md5String</span>
 
@@ -855,7 +995,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func Md5String(s string) string
+func Md5String(str string) string
 ```
 
 <b>示例:</b>
@@ -879,6 +1019,93 @@ func main() {
 }
 ```
 
+### <span id="Md5StringWithBase64">Md5StringWithBase64</span>
+
+<p>获取字符串md5 base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func Md5StringWithBase64(s string) string
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    md5Str := cryptor.Md5StringWithBase64("hello")
+	fmt.Println(md5Str)
+
+	// Output:
+	// XUFAKrxLKna5cZ2REBfFkg==
+}
+```
+
+### <span id="Md5Byte">Md5Byte</span>
+
+<p>获取byte slice的md5值。</p>
+
+<b>函数签名:</b>
+
+```go
+func Md5Byte(data []byte) string
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    md5Str := cryptor.Md5Byte([]byte{'a'})
+	fmt.Println(md5Str)
+
+	// Output:
+	// 0cc175b9c0f1b6a831c399e269772661
+}
+```
+
+### <span id="Md5ByteWithBase64">Md5ByteWithBase64</span>
+
+<p>获取byte slice的md5 base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func Md5ByteWithBase64(data []byte) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    md5Str := cryptor.Md5ByteWithBase64([]byte("hello"))
+	fmt.Println(md5Str)
+
+	// Output:
+	// XUFAKrxLKna5cZ2REBfFkg==
+}
+```
+
 ### <span id="Md5File">Md5File</span>
 
 <p>获取文件md5值。</p>
@@ -912,7 +1139,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func Sha1(data string) string
+func Sha1(str string) string
 ```
 
 <b>示例:</b>
@@ -936,6 +1163,35 @@ func main() {
 }
 ```
 
+### <span id="Sha1WithBase64">Sha1WithBase64</span>
+
+<p>获取字符串sha1 base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func Sha1WithBase64(str string) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    result := cryptor.Sha1WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// qvTGHdzF6KLavt4PO0gs2a6pQ00=
+}
+```
+
 ### <span id="Sha256">Sha256</span>
 
 <p>获取字符串sha256值。</p>
@@ -943,7 +1199,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func Sha256(data string) string
+func Sha256(str string) string
 ```
 
 <b>示例:</b>
@@ -967,6 +1223,35 @@ func main() {
 }
 ```
 
+### <span id="Sha256WithBase64">Sha256WithBase64</span>
+
+<p>获取字符串sha256 base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func Sha256WithBase64(str string) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    result := cryptor.Sha256WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ=
+}
+```
+
 ### <span id="Sha512">Sha512</span>
 
 <p>获取字符串sha512值。</p>
@@ -974,7 +1259,7 @@ func main() {
 <b>函数签名:</b>
 
 ```go
-func Sha512(data string) string
+func Sha512(str string) string
 ```
 
 <b>示例:</b>
@@ -998,6 +1283,35 @@ func main() {
 }
 ```
 
+### <span id="Sha512WithBase64">Sha512WithBase64</span>
+
+<p>获取字符串sha512 base64值。</p>
+
+<b>函数签名:</b>
+
+```go
+func Sha512WithBase64(str string) string
+```
+
+<b>实例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/cryptor"
+)
+
+func main() {
+    result := cryptor.Sha512WithBase64("hello")
+	fmt.Println(result)
+
+	// Output:
+	// m3HSJL1i83hdltRq0+o9czGb+8KJDKra4t/3JRlnPKcjI8PZm6XBHXx6zG4UuMXaDEZjR1wuXDre9G9zvN7AQw==
+}
+```
+
 ### <span id="GenerateRsaKey">GenerateRsaKey</span>
 
 <p>在当前目录下创建rsa私钥文件和公钥文件。</p>

docs/olddocs/datastructure/copyonwritelist.md

@@ -0,0 +1,470 @@
+# CopyOnWriteList
+
+CopyOnWriteList is a thread-safe list implementation that uses go slicing as its base. When writing, a new slice is copied and assigned to the original slice when writing is complete. When reading, the original slice is read directly.
+
+## 源码
+
+-   [https://github.com/duke-git/lancet/blob/main/datastructure/list/copyonwritelist.go](https://github.com/duke-git/lancet/blob/main /datastructure/list/copyonwritelist.go)
+
+## 用法
+
+```go
+import (
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+```
+
+<div STYLE="page-break-after: always;"></div>
+
+## 目录
+
+-   [NewCopyOnWriteList](#NewCopyOnWriteList)
+-   [Size](#Size)
+-   [Get](#Get)
+-   [Set](#Set)
+-   [Remove](#Remove)
+-   [IndexOf](#IndexOf)
+-   [LastIndexOf](#LastIndexOf)
+-   [IsEmpty](#IsEmpty)
+-   [Contain](#Contain)
+-   [ValueOf](#ValueOf)
+-   [Add](#Add)
+-   [AddAll](#AddAll)
+-   [AddByIndex](#AddByIndex)
+-   [DeleteAt](#DeleteAt)
+-   [DeleteIf](#DeleteIf)
+-   [DeleteBy](#DeleteBy)
+-   [DeleteRange](#DeleteRange)
+-   [Equal](#Equal)
+
+## Documentation
+
+### NewCopyOnWriteList
+
+Returns a CopyOnWriteList with empty slices.
+
+```go
+type CopyOnWriteList[T any] struct {
+    data []T
+    lock sync.
+}
+
+func NewCopyOnWriteList() *CopyOnWriteList
+
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l)
+}
+```
+
+### Size
+
+Returns the length of the CopyOnWriteList.
+
+```go
+func (l *CopyOnWriteList[T]) Size() int
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.Size())
+}
+
+```
+
+### Get
+
+Returns the element at the specified position in the list
+
+```go
+func (c *CopyOnWriteList[T]) Get(index int) *T
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.Get(2))
+}
+
+```
+
+### Set
+
+Replaces the element at the specified position in this list with the specified element.
+
+```go
+func (c *CopyOnWriteList[T]) Set(index int, e T) (oldValue *T, ok bool)
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.Set(2, 4))
+}
+
+```
+
+### Remove
+
+### IndexOf
+
+Returns the index of the value in the list, or -1 if not found.
+
+```go
+func (c *CopyOnWriteList[T]) IndexOf(e T) int
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.IndexOf(1))
+}
+
+```
+
+### LastIndexOf
+
+Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain that element.
+
+```go
+func (c *CopyOnWriteList[T]) LastIndexOf(e T) int
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3,1})
+    fmt.Println(l.LastIndexOf(1))
+}
+
+```
+
+### IsEmpty
+
+Returns true if this list does not contain any elements.
+
+```go
+func (c *CopyOnWriteList[T]) IsEmpty() bool
+```
+
+#### Example
+
+```go
+package main
+
+import (
+"fmt"
+"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{})
+    fmt.Println(l.IsEmpty())
+}
+```
+
+### Contain
+
+Determines if a CopyOnWriteList contains an element.
+
+```go
+func (c *CopyOnWriteList[T]) Contain(e T) bool
+```
+
+#### Example
+
+```go
+package main
+
+import (
+"fmt"
+"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+l := list.NewCopyOnWriteList([]int{1,2,3})
+fmt.Println(l.Contain(1))
+}
+```
+
+### ValueOf
+
+Returns a pointer to the value at the index in the list
+
+```go
+func (c *CopyOnWriteList[T]) ValueOf(index int) []T
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.ValueOf(2))
+}
+
+```
+
+### Add
+
+Appends the specified element to the end of the list.
+
+```go
+func (c *CopyOnWriteList[T]) Add(e T) bool
+```
+
+#### Example
+
+```go
+
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+	l.Add(4)
+	fmt.Println(l.getList())
+}
+
+```
+
+### AddAll
+
+Appends all the elements of the specified collection to the end of this list
+
+```go
+func (c *CopyOnWriteList[T]) AddAll(e []T) bool
+```
+
+#### Example
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    l.AddAll([]int{4,5,6})
+    fmt.Println(l.getList())
+}
+
+```
+
+### AddByIndex
+
+Inserts the specified element into the list at the specified position.
+
+```go
+func (c *CopyOnWriteList[T]) AddByIndex(index int, e T) bool
+```
+
+#### Example
+
+```go
+package main
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    list.AddByIndex(2, 6)
+    fmt.Println(l.getList())
+}
+
+```
+
+### DeleteAt
+
+Removes the element at the specified position in this list.
+
+```go
+func (c *CopyOnWriteList[T]) DeleteAt(index int) (oldValue *T, ok bool)
+```
+
+#### Example
+
+```go
+package main
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    list.DeleteAt(2)
+    fmt.Println(l.getList())
+}
+```
+
+### DeleteIf
+
+Removes the first occurrence of the specified element from this list (if it exists).
+
+```go
+func (c *CopyOnWriteList[T]) DeleteIf(func(T) bool) (oldValue *T, ok bool)
+```
+
+#### Example
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    list.DeleteIf(func(i int) bool {
+        return i == 2
+    })
+    fmt.Println(l.getList())
+}
+```
+
+### DeleteBy
+
+Deletes the first occurrence of the specified element from this list (if it exists).
+
+```go
+func (c *CopyOnWriteList[T]) DeleteBy(e T) (*T bool)
+```
+
+#### Example
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+    list.DeleteBy(2)
+    fmt.Println(l.getList())
+}
+```
+
+### DeleteRange
+
+Deletes all elements from this list with indexes between fromIndex (included) and toIndex (not included).
+(leftCloseRightOpen)
+
+```go
+func (c *CopyOnWriteList[T]) DeleteRange(start int, end int)
+```
+
+#### Example
+
+```go
+package main
+import (
+"fmt"
+"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3,4,5,6,7,8,9})
+    list.DeleteRange(2, 5)
+    fmt.Println(l.getList())
+}
+```
+
+### Equal
+
+Returns true if the specified object is equal to this list
+
+```go
+func (c *CopyOnWriteList[T]) Equal(e []T) bool
+```
+
+#### Example
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3,4,5,6,7,8,9})
+    fmt.Println(l.Equal([]int{1,2,3,4,5,6,7,8,9}))
+}
+```

docs/olddocs/datastructure/copyonwritelist_zh-CN.md

@@ -0,0 +1,471 @@
+# CopyOnWriteList
+
+CopyOnWriteList 是一个线程安全的 List 实现，底层使用 go 切片。写入时，会复制一份新的切片，写入完成后，再将新的切片赋值给原来的切片。读取时，直接读取原来的切片。
+
+## 源码
+
+-   [https://github.com/duke-git/lancet/blob/main/datastructure/list/copyonwritelist.go](https://github.com/duke-git/lancet/blob/main/datastructure/list/copyonwritelist.go)
+
+## 用法
+
+```go
+import (
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+```
+
+<div STYLE="page-break-after: always;"></div>
+
+## 目录
+
+-   [NewCopyOnWriteList](#NewCopyOnWriteList)
+-   [Size](#Size)
+-   [Get](#Get)
+-   [Set](#Set)
+-   [Remove](#Remove)
+-   [IndexOf](#IndexOf)
+-   [LastIndexOf](#LastIndexOf)
+-   [IsEmpty](#IsEmpty)
+-   [Contain](#Contain)
+-   [ValueOf](#ValueOf)
+-   [Add](#Add)
+-   [AddAll](#AddAll)
+-   [AddByIndex](#AddByIndex)
+-   [DeleteAt](#DeleteAt)
+-   [DeleteIf](#DeleteIf)
+-   [DeleteBy](#DeleteBy)
+-   [DeleteRange](#DeleteRange)
+-   [Equal](#Equal)
+
+## 文档
+
+### NewCopyOnWriteList
+
+返回一个具有空切片的 CopyOnWriteList。
+
+```go
+type CopyOnWriteList[T any] struct {
+    data []T
+    lock sync.Locker
+}
+
+func NewCopyOnWriteList() *CopyOnWriteList
+
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l)
+}
+
+```
+
+### Size
+
+返回 CopyOnWriteList 的长度。
+
+```go
+func (l *CopyOnWriteList[T]) Size() int
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.Size())
+}
+
+```
+
+### Get
+
+返回列表中指定位置的元素
+
+```go
+func (c *CopyOnWriteList[T]) Get(index int) *T
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+	fmt.Println(l.Get(2))
+}
+
+```
+
+### Set
+
+将此列表中指定位置的元素替换为指定元素。
+
+```go
+func (c *CopyOnWriteList[T]) Set(index int, e T) (oldValue *T, ok bool)
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.Set(2, 4))
+}
+
+```
+
+### Remove
+
+### IndexOf
+
+返回列表中值的索引，如果没有找到返回-1。
+
+```go
+func (c *CopyOnWriteList[T]) IndexOf(e T) int
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.IndexOf(1))
+}
+
+```
+
+### LastIndexOf
+
+返回指定元素在此列表中最后出现的索引，如果此列表不包含该元素，则返回-1。
+
+```go
+func (c *CopyOnWriteList[T]) LastIndexOf(e T) int
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3,1})
+	fmt.Println(l.LastIndexOf(1))
+}
+
+```
+
+### IsEmpty
+
+如果此列表不包含任何元素，则返回 true。
+
+```go
+func (c *CopyOnWriteList[T]) IsEmpty() bool
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{})
+	fmt.Println(l.IsEmpty())
+}
+```
+
+### Contain
+
+判断 CopyOnWriteList 是否包含某个元素
+
+```go
+func (c *CopyOnWriteList[T]) Contain(e T) bool
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.Contain(1))
+}
+```
+
+### ValueOf
+
+返回列表中索引处的值指针
+
+```go
+func (c *CopyOnWriteList[T]) ValueOf(index int) []T
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    fmt.Println(l.ValueOf(2))
+}
+
+```
+
+### Add
+
+将指定的元素追加到此列表的末尾。
+
+```go
+func (c *CopyOnWriteList[T]) Add(e T) bool
+```
+
+#### 示例
+
+```go
+
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+	l.Add(4)
+	fmt.Println(l.getList())
+}
+
+```
+
+### AddAll
+
+将指定集合中的所有元素追加到此列表的末尾
+
+```go
+func (c *CopyOnWriteList[T]) AddAll(e []T) bool
+```
+
+#### 示例
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    l.AddAll([]int{4,5,6})
+    fmt.Println(l.getList())
+}
+
+```
+
+### AddByIndex
+
+将指定元素插入此列表中的指定位置。
+
+```go
+func (c *CopyOnWriteList[T]) AddByIndex(index int, e T) bool
+```
+
+#### 示例
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+	list.AddByIndex(2, 6)
+	fmt.Println(l.getList())
+}
+
+```
+
+### DeleteAt
+
+移除此列表中指定位置的元素。
+
+```go
+func (c *CopyOnWriteList[T]) DeleteAt(index int) (oldValue *T, ok bool)
+```
+
+#### 示例
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+	list.DeleteAt(2)
+	fmt.Println(l.getList())
+}
+```
+
+### DeleteIf
+
+从此列表中删除第一个出现的指定元素(如果该元素存在)。
+
+```go
+func (c *CopyOnWriteList[T]) DeleteIf(f func(T) bool) (oldValue *T, ok bool)
+```
+
+#### 示例
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+    l := list.NewCopyOnWriteList([]int{1,2,3})
+    list.DeleteIf(func(i int) bool {
+        return i == 2
+    })
+    fmt.Println(l.getList())
+}
+```
+
+### DeleteBy
+
+从此列表中删除第一个出现的指定元素(如果该元素存在)。
+
+```go
+func (c *CopyOnWriteList[T]) DeleteBy(e T) (*T bool)
+```
+
+#### 示例
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main()  {
+	l := list.NewCopyOnWriteList([]int{1,2,3})
+    list.DeleteBy(2)
+    fmt.Println(l.getList())
+}
+```
+
+### DeleteRange
+
+从该列表中删除索引介于 fromIndex(包含)和 toIndex(不包含)之间的所有元素。
+(左闭右开)。
+
+```go
+func (c *CopyOnWriteList[T]) DeleteRange(start int, end int)
+```
+
+#### 示例
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3,4,5,6,7,8,9})
+    list.DeleteRange(2, 5)
+    fmt.Println(l.getList())
+}
+```
+
+### Equal
+
+如果指定的对象等于此列表，则返回 true。
+
+```go
+func (c *CopyOnWriteList[T]) Equal(e []T) bool
+```
+
+#### 示例
+
+```go
+package main
+import (
+	"fmt"
+	"github.com/duke-git/lancet/datastructure/list"
+)
+
+func main() {
+    l := list.NewCopyOnWriteList([]int{1,2,3,4,5,6,7,8,9})
+    fmt.Println(l.Equal([]int{1,2,3,4,5,6,7,8,9}))
+}
+```

docs/olddocs/datastructure/set.md

@@ -1,16 +1,17 @@
 # Set
+
 Set is a data container, like list, but elements of set is not duplicate.
 
 <div STYLE="page-break-after: always;"></div>
 
 ## Source
 
-- [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
-
+-   [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
 
 <div STYLE="page-break-after: always;"></div>
 
 ## Usage
+
 ```go
 import (
     set "github.com/duke-git/lancet/v2/datastructure/set"
@@ -21,32 +22,32 @@ import (
 
 ## Index
 
-- [NewSet](#NewSet)
-- [NewSetFromSlice](#NewSetFromSlice)
-- [Values](#Values)
-- [Add](#Add)
-- [AddIfNotExist](#AddIfNotExist)
-- [AddIfNotExistBy](#AddIfNotExistBy)
-- [Delete](#Delete)
-- [Contain](#Contain)
-- [ContainAll](#ContainAll)
-- [Clone](#Clone)
-- [Size](#Size)
-- [Equal](#Equal)
-- [Iterate](#Iterate)
-- [IsEmpty](#IsEmpty)
-- [Union](#Union)
-- [Intersection](#Intersection)
-- [SymmetricDifference](#SymmetricDifference)
-- [Minus](#Minus)
-
-
+-   [NewSet](#NewSet)
+-   [NewSetFromSlice](#NewSetFromSlice)
+-   [Values](#Values)
+-   [Add](#Add)
+-   [AddIfNotExist](#AddIfNotExist)
+-   [AddIfNotExistBy](#AddIfNotExistBy)
+-   [Delete](#Delete)
+-   [Contain](#Contain)
+-   [ContainAll](#ContainAll)
+-   [Clone](#Clone)
+-   [Size](#Size)
+-   [Equal](#Equal)
+-   [Iterate](#Iterate)
+-   [EachWithBreak](#EachWithBreak)
+-   [IsEmpty](#IsEmpty)
+-   [Union](#Union)
+-   [Intersection](#Intersection)
+-   [SymmetricDifference](#SymmetricDifference)
+-   [Minus](#Minus)
 
 <div STYLE="page-break-after: always;"></div>
 
 ## Documentation
 
 ### <span id="NewSet">NewSet</span>
+
 <p>Create a set instance</p>
 
 <b>Signature:</b>
@@ -55,6 +56,7 @@ import (
 type Set[T comparable] map[T]bool
 func NewSet[T comparable](items ...T) Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -71,8 +73,8 @@ func main() {
 }
 ```
 
-
 ### <span id="NewSetFromSlice">NewSetFromSlice</span>
+
 <p>Create a set from slice</p>
 
 <b>Signature:</b>
@@ -80,6 +82,7 @@ func main() {
 ```go
 func NewSetFromSlice[T comparable](items []T) Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -96,9 +99,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Values">Values</span>
+
 <p>Return slice of all set data</p>
 
 <b>Signature:</b>
@@ -106,6 +108,7 @@ func main() {
 ```go
 func (s Set[T]) Values() []T
 ```
+
 <b>Example:</b>
 
 ```go
@@ -122,10 +125,8 @@ func main() {
 }
 ```
 
-
-
-
 ### <span id="Add">Add</span>
+
 <p>Add items to set</p>
 
 <b>Signature:</b>
@@ -133,6 +134,7 @@ func main() {
 ```go
 func (s Set[T]) Add(items ...T)
 ```
+
 <b>Example:</b>
 
 ```go
@@ -151,8 +153,8 @@ func main() {
 }
 ```
 
-
 ### <span id="AddIfNotExist">AddIfNotExist</span>
+
 <p>AddIfNotExist checks if item exists in the set, it adds the item to set and returns true if it does not exist in the set, or else it does nothing and returns false.</p>
 
 <b>Signature:</b>
@@ -160,6 +162,7 @@ func main() {
 ```go
 func (s Set[T]) AddIfNotExist(item T) bool
 ```
+
 <b>Example:</b>
 
 ```go
@@ -175,7 +178,7 @@ func main() {
     st.Add(1, 2, 3)
 
     r1 := st.AddIfNotExist(1)
-	r2 := st.AddIfNotExist(4)
+    r2 := st.AddIfNotExist(4)
 
     fmt.Println(r1) // false
     fmt.Println(r2) // true
@@ -183,8 +186,8 @@ func main() {
 }
 ```
 
-
 ### <span id="AddIfNotExistBy">AddIfNotExistBy</span>
+
 <p>AddIfNotExistBy checks if item exists in the set and pass the `checker` function it adds the item to set and returns true if it does not exists in the set and function `checker` returns true, or else it does nothing and returns false.</p>
 
 <b>Signature:</b>
@@ -192,6 +195,7 @@ func main() {
 ```go
 func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool
 ```
+
 <b>Example:</b>
 
 ```go
@@ -206,23 +210,23 @@ func main() {
     st := set.NewSet[int]()
     st.Add(1, 2)
 
-	ok := st.AddIfNotExistBy(3, func(val int) bool {
-		return val%2 != 0
-	})
+    ok := st.AddIfNotExistBy(3, func(val int) bool {
+        return val%2 != 0
+    })
     fmt.Println(ok) // true
 
 
-	notOk := st.AddIfNotExistBy(4, func(val int) bool {
-		return val%2 != 0
-	})
+    notOk := st.AddIfNotExistBy(4, func(val int) bool {
+        return val%2 != 0
+    })
     fmt.Println(notOk) // false
-    
+
     fmt.Println(st.Values()) // 1, 2, 3
 }
 ```
 
-
 ### <span id="Delete">Delete</span>
+
 <p>Delete item in set</p>
 
 <b>Signature:</b>
@@ -230,6 +234,7 @@ func main() {
 ```go
 func (s Set[T]) Delete(items ...T)
 ```
+
 <b>Example:</b>
 
 ```go
@@ -249,9 +254,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Contain">Contain</span>
+
 <p>Check if item is in set or not</p>
 
 <b>Signature:</b>
@@ -259,6 +263,7 @@ func main() {
 ```go
 func (s Set[T]) Contain(item T) bool
 ```
+
 <b>Example:</b>
 
 ```go
@@ -278,10 +283,8 @@ func main() {
 }
 ```
 
-
-
-
 ### <span id="ContainAll">ContainAll</span>
+
 <p>Checks if set contains another set</p>
 
 <b>Signature:</b>
@@ -289,6 +292,7 @@ func main() {
 ```go
 func (s Set[T]) ContainAll(other Set[T]) bool
 ```
+
 <b>Example:</b>
 
 ```go
@@ -301,17 +305,16 @@ import (
 
 func main() {
     set1 := set.NewSet(1, 2, 3)
-	set2 := set.NewSet(1, 2)
-	set3 := set.NewSet(1, 2, 3, 4)
+    set2 := set.NewSet(1, 2)
+    set3 := set.NewSet(1, 2, 3, 4)
 
     fmt.Println(set1.ContainAll(set2)) //true
     fmt.Println(set1.ContainAll(set3)) //false
 }
 ```
 
-
-
 ### <span id="Size">Size</span>
+
 <p>Get the number of elements in set</p>
 
 <b>Signature:</b>
@@ -319,6 +322,7 @@ func main() {
 ```go
 func (s Set[T]) Size() int
 ```
+
 <b>Example:</b>
 
 ```go
@@ -336,9 +340,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Clone">Clone</span>
+
 <p>Make a copy of set</p>
 
 <b>Signature:</b>
@@ -346,6 +349,7 @@ func main() {
 ```go
 func (s Set[T]) Clone() Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -365,10 +369,8 @@ func main() {
 }
 ```
 
-
-
-
 ### <span id="Equal">Equal</span>
+
 <p>Check if two sets has same elements or not</p>
 
 <b>Signature:</b>
@@ -376,6 +378,7 @@ func main() {
 ```go
 func (s Set[T]) Equal(other Set[T]) bool
 ```
+
 <b>Example:</b>
 
 ```go
@@ -396,9 +399,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Iterate">Iterate</span>
+
 <p>Call function by every element of set</p>
 
 <b>Signature:</b>
@@ -406,6 +408,7 @@ func main() {
 ```go
 func (s Set[T]) Iterate(fn func(item T))
 ```
+
 <b>Example:</b>
 
 ```go
@@ -427,9 +430,45 @@ func main() {
 }
 ```
 
+### <span id="EachWithBreak">EachWithBreak</span>
 
+<p>Iterates over elements of a set and invokes function for each element, when iteratee return false, will break the for each loop.</p>
+
+<b>Signature:</b>
+
+```go
+func (s Set[T]) EachWithBreak(iteratee func(item T) bool)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    s := set.NewSet(1, 2, 3, 4, 5)
+
+    var sum int
+
+    s.EachWithBreak(func(n int) bool {
+        if n > 3 {
+            return false
+        }
+        sum += n
+        return true
+    })
+
+    fmt.Println(sum) //6
+}
+```
 
 ### <span id="IsEmpty">IsEmpty</span>
+
 <p>Check if the set is empty or not</p>
 
 <b>Signature:</b>
@@ -437,6 +476,7 @@ func main() {
 ```go
 func (s Set[T]) IsEmpty() bool
 ```
+
 <b>Example:</b>
 
 ```go
@@ -456,9 +496,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Union">Union</span>
+
 <p>Create a new set contain all element of set s and other</p>
 
 <b>Signature:</b>
@@ -466,6 +505,7 @@ func main() {
 ```go
 func (s Set[T]) Union(other Set[T]) Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -485,9 +525,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Intersection">Intersection</span>
+
 <p>Create a new set whose element both be contained in set s and other</p>
 
 <b>Signature:</b>
@@ -495,6 +534,7 @@ func main() {
 ```go
 func (s Set[T]) Intersection(other Set[T]) Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -514,11 +554,8 @@ func main() {
 }
 ```
 
-
-
-
-
 ### <span id="SymmetricDifference">SymmetricDifference</span>
+
 <p>Create a new set whose element is in set1 or set2, but not in both set1 and set2</p>
 
 <b>Signature:</b>
@@ -526,6 +563,7 @@ func main() {
 ```go
 func (s Set[T]) SymmetricDifference(other Set[T]) Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -538,18 +576,15 @@ import (
 
 func main() {
     set1 := set.NewSet(1, 2, 3)
-	set2 := set.NewSet(2, 3, 4, 5)
-	set3 := set1.SymmetricDifference(set2)
+    set2 := set.NewSet(2, 3, 4, 5)
+    set3 := set1.SymmetricDifference(set2)
 
     fmt.Println(set3.Values()) //1,4,5
 }
 ```
 
-
-
-
-
 ### <span id="Minus">Minus</span>
+
 <p>Create an set of whose element in origin set but not in compared set</p>
 
 <b>Signature:</b>
@@ -557,6 +592,7 @@ func main() {
 ```go
 func (s Set[T]) Minus(comparedSet Set[T]) Set[T]
 ```
+
 <b>Example:</b>
 
 ```go
@@ -569,8 +605,8 @@ import (
 
 func main() {
     set1 := set.NewSet(1, 2, 3)
-	set2 := set.NewSet(2, 3, 4, 5)
-	set3 := set.NewSet(2, 3)
+    set2 := set.NewSet(2, 3, 4, 5)
+    set3 := set.NewSet(2, 3)
 
     res1 := set1.Minus(set2)
     fmt.Println(res1.Values()) //1
@@ -580,5 +616,35 @@ func main() {
 }
 ```
 
+### <span id="Pop">Pop</span>
 
+<p>Delete the top element of set then return it, if set is empty, return nil-value of T and false.</p>
 
+<b>Signature:</b>
+
+```go
+func (s Set[T]) Pop() (v T, ok bool)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    s := set.NewSet[int]()
+    s.Add(1)
+    s.Add(2)
+    s.Add(3)
+
+    val, ok = s.Pop()
+
+    fmt.Println(val) // 3
+    fmt.Println(ok) // true
+}
+```

docs/olddocs/datastructure/set_zh-CN.md

@@ -1,16 +1,17 @@
 # Set
-Set集合数据结构，类似列表。Set中元素不重复。
+
+Set 集合数据结构，类似列表。Set 中元素不重复。
 
 <div STYLE="page-break-after: always;"></div>
 
 ## 源码
 
-- [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
-
+-   [https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go](https://github.com/duke-git/lancet/blob/main/datastructure/set/set.go)
 
 <div STYLE="page-break-after: always;"></div>
 
 ## 用法
+
 ```go
 import (
     set "github.com/duke-git/lancet/v2/datastructure/set"
@@ -21,32 +22,31 @@ import (
 
 ## 目录
 
-- [NewSet](#NewSet)
-- [NewSetFromSlice](#NewSetFromSlice)
-- [Values](#Values)
-- [Add](#Add)
-- [AddIfNotExist](#AddIfNotExist)
-- [AddIfNotExistBy](#AddIfNotExistBy)
-- [Delete](#Delete)
-- [Contain](#Contain)
-- [ContainAll](#ContainAll)
-- [Clone](#Clone)
-- [Size](#Size)
-- [Equal](#Equal)
-- [Iterate](#Iterate)
-- [IsEmpty](#IsEmpty)
-- [Union](#Union)
-- [Intersection](#Intersection)
-- [SymmetricDifference](#SymmetricDifference)
-- [Minus](#Minus)
-
-
+-   [NewSet](#NewSet)
+-   [NewSetFromSlice](#NewSetFromSlice)
+-   [Values](#Values)
+-   [Add](#Add)
+-   [AddIfNotExist](#AddIfNotExist)
+-   [AddIfNotExistBy](#AddIfNotExistBy)
+-   [Delete](#Delete)
+-   [Contain](#Contain)
+-   [ContainAll](#ContainAll)
+-   [Clone](#Clone)
+-   [Size](#Size)
+-   [Equal](#Equal)
+-   [Iterate](#Iterate)
+-   [IsEmpty](#IsEmpty)
+-   [Union](#Union)
+-   [Intersection](#Intersection)
+-   [SymmetricDifference](#SymmetricDifference)
+-   [Minus](#Minus)
 
 <div STYLE="page-break-after: always;"></div>
 
 ## 文档
 
 ### <span id="NewSet">NewSet</span>
+
 <p>返回Set结构体对象</p>
 
 <b>函数签名:</b>
@@ -55,6 +55,7 @@ import (
 type Set[T comparable] map[T]bool
 func NewSet[T comparable](items ...T) Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -71,9 +72,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="NewSetFromSlice">NewSetFromSlice</span>
+
 <p>基于切片创建集合</p>
 
 <b>函数签名:</b>
@@ -81,6 +81,7 @@ func main() {
 ```go
 func NewSetFromSlice[T comparable](items []T) Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -97,9 +98,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Values">Values</span>
+
 <p>获取集合中所有元素的切片</p>
 
 <b>函数签名:</b>
@@ -107,6 +107,7 @@ func main() {
 ```go
 func (s Set[T]) Values() []T
 ```
+
 <b>示例:</b>
 
 ```go
@@ -123,10 +124,8 @@ func main() {
 }
 ```
 
-
-
-
 ### <span id="Add">Add</span>
+
 <p>向集合中添加元素</p>
 
 <b>函数签名:</b>
@@ -134,6 +133,7 @@ func main() {
 ```go
 func (s Set[T]) Add(items ...T)
 ```
+
 <b>示例:</b>
 
 ```go
@@ -152,8 +152,8 @@ func main() {
 }
 ```
 
-
 ### <span id="AddIfNotExist">AddIfNotExist</span>
+
 <p>如果集合中不存在元素，则添加该元素返回true, 如果集合中存在元素, 不做任何操作，返回false</p>
 
 <b>函数签名:</b>
@@ -161,6 +161,7 @@ func main() {
 ```go
 func (s Set[T]) AddIfNotExist(item T) bool
 ```
+
 <b>示例:</b>
 
 ```go
@@ -176,7 +177,7 @@ func main() {
     st.Add(1, 2, 3)
 
     r1 := st.AddIfNotExist(1)
-	r2 := st.AddIfNotExist(4)
+    r2 := st.AddIfNotExist(4)
 
     fmt.Println(r1) // false
     fmt.Println(r2) // true
@@ -184,8 +185,8 @@ func main() {
 }
 ```
 
-
 ### <span id="AddIfNotExistBy">AddIfNotExistBy</span>
+
 <p>根据checker函数判断元素是否在集合中，如果集合中不存在元素且checker返回true，则添加该元素返回true, 否则不做任何操作，返回false</p>
 
 <b>函数签名:</b>
@@ -193,6 +194,7 @@ func main() {
 ```go
 func (s Set[T]) AddIfNotExistBy(item T, checker func(element T) bool) bool
 ```
+
 <b>示例:</b>
 
 ```go
@@ -207,24 +209,23 @@ func main() {
     st := set.NewSet[int]()
     st.Add(1, 2)
 
-	ok := st.AddIfNotExistBy(3, func(val int) bool {
-		return val%2 != 0
-	})
+    ok := st.AddIfNotExistBy(3, func(val int) bool {
+        return val%2 != 0
+    })
     fmt.Println(ok) // true
 
 
-	notOk := st.AddIfNotExistBy(4, func(val int) bool {
-		return val%2 != 0
-	})
+    notOk := st.AddIfNotExistBy(4, func(val int) bool {
+        return val%2 != 0
+    })
     fmt.Println(notOk) // false
-    
+
     fmt.Println(st.Values()) // 1, 2, 3
 }
 ```
 
-
-
 ### <span id="Delete">Delete</span>
+
 <p>删除集合中元素</p>
 
 <b>函数签名:</b>
@@ -232,6 +233,7 @@ func main() {
 ```go
 func (s Set[T]) Delete(items ...T)
 ```
+
 <b>示例:</b>
 
 ```go
@@ -251,9 +253,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Contain">Contain</span>
+
 <p>判断集合是否包含某个值</p>
 
 <b>函数签名:</b>
@@ -261,6 +262,7 @@ func main() {
 ```go
 func (s Set[T]) Contain(item T) bool
 ```
+
 <b>示例:</b>
 
 ```go
@@ -280,10 +282,8 @@ func main() {
 }
 ```
 
-
-
-
 ### <span id="ContainAll">ContainAll</span>
+
 <p>判断集合是否包含另一个集合</p>
 
 <b>函数签名:</b>
@@ -291,6 +291,7 @@ func main() {
 ```go
 func (s Set[T]) ContainAll(other Set[T]) bool
 ```
+
 <b>示例:</b>
 
 ```go
@@ -303,17 +304,16 @@ import (
 
 func main() {
     set1 := set.NewSet(1, 2, 3)
-	set2 := set.NewSet(1, 2)
-	set3 := set.NewSet(1, 2, 3, 4)
+    set2 := set.NewSet(1, 2)
+    set3 := set.NewSet(1, 2, 3, 4)
 
     fmt.Println(set1.ContainAll(set2)) //true
     fmt.Println(set1.ContainAll(set3)) //false
 }
 ```
 
-
-
 ### <span id="Size">Size</span>
+
 <p>获取集合中元素的个数</p>
 
 <b>函数签名:</b>
@@ -321,6 +321,7 @@ func main() {
 ```go
 func (s Set[T]) Size() int
 ```
+
 <b>示例:</b>
 
 ```go
@@ -338,9 +339,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Clone">Clone</span>
+
 <p>克隆一个集合</p>
 
 <b>函数签名:</b>
@@ -348,6 +348,7 @@ func main() {
 ```go
 func (s Set[T]) Clone() Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -367,10 +368,8 @@ func main() {
 }
 ```
 
-
-
-
 ### <span id="Equal">Equal</span>
+
 <p>比较两个集合是否相等，包含相同元素为相等</p>
 
 <b>函数签名:</b>
@@ -378,6 +377,7 @@ func main() {
 ```go
 func (s Set[T]) Equal(other Set[T]) bool
 ```
+
 <b>示例:</b>
 
 ```go
@@ -398,9 +398,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Iterate">Iterate</span>
+
 <p>迭代结合，在每个元素上调用函数</p>
 
 <b>函数签名:</b>
@@ -408,6 +407,7 @@ func main() {
 ```go
 func (s Set[T]) Iterate(fn func(item T))
 ```
+
 <b>示例:</b>
 
 ```go
@@ -429,9 +429,45 @@ func main() {
 }
 ```
 
+### <span id="EachWithBreak">EachWithBreak</span>
 
+<p>遍历集合的元素并为每个元素调用iteratee函数，当iteratee函数返回false时，终止遍历。</p>
+
+<b>函数签名:</b>
+
+```go
+func (s Set[T]) EachWithBreak(iteratee func(item T) bool)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    s := set.NewSet(1, 2, 3, 4, 5)
+
+    var sum int
+
+    s.EachWithBreak(func(n int) bool {
+        if n > 3 {
+            return false
+        }
+        sum += n
+        return true
+    })
+
+    fmt.Println(sum) //6
+}
+```
 
 ### <span id="IsEmpty">IsEmpty</span>
+
 <p>判断集合是否为空</p>
 
 <b>函数签名:</b>
@@ -439,6 +475,7 @@ func main() {
 ```go
 func (s Set[T]) IsEmpty() bool
 ```
+
 <b>示例:</b>
 
 ```go
@@ -458,9 +495,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Union">Union</span>
+
 <p>求两个集合的并集</p>
 
 <b>函数签名:</b>
@@ -468,6 +504,7 @@ func main() {
 ```go
 func (s Set[T]) Union(other Set[T]) Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -487,9 +524,8 @@ func main() {
 }
 ```
 
-
-
 ### <span id="Intersection">Intersection</span>
+
 <p>求两个集合的交集</p>
 
 <b>函数签名:</b>
@@ -497,6 +533,7 @@ func main() {
 ```go
 func (s Set[T]) Intersection(other Set[T]) Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -516,8 +553,8 @@ func main() {
 }
 ```
 
-
 ### <span id="SymmetricDifference">SymmetricDifference</span>
+
 <p>返回一个集合，其中元素在第一个集合或第二个集合中，且不同时存在于两个集合中</p>
 
 <b>函数签名:</b>
@@ -525,6 +562,7 @@ func main() {
 ```go
 func (s Set[T]) SymmetricDifference(other Set[T]) Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -537,18 +575,15 @@ import (
 
 func main() {
     set1 := set.NewSet(1, 2, 3)
-	set2 := set.NewSet(2, 3, 4, 5)
-	set3 := set1.SymmetricDifference(set2)
+    set2 := set.NewSet(2, 3, 4, 5)
+    set3 := set1.SymmetricDifference(set2)
 
     fmt.Println(set3.Values()) //1,4,5
 }
 ```
 
-
-
-
-
 ### <span id="Minus">Minus</span>
+
 <p>创建一个集合，其元素在原始集中但不在比较集中</p>
 
 <b>函数签名:</b>
@@ -556,6 +591,7 @@ func main() {
 ```go
 func (s Set[T]) Minus(comparedSet Set[T]) Set[T]
 ```
+
 <b>示例:</b>
 
 ```go
@@ -568,8 +604,8 @@ import (
 
 func main() {
     set1 := set.NewSet(1, 2, 3)
-	set2 := set.NewSet(2, 3, 4, 5)
-	set3 := set.NewSet(2, 3)
+    set2 := set.NewSet(2, 3, 4, 5)
+    set3 := set.NewSet(2, 3)
 
     res1 := set1.Minus(set2)
     fmt.Println(res1.Values()) //1
@@ -579,5 +615,35 @@ func main() {
 }
 ```
 
+### <span id="Pop">Pop</span>
 
+<p>删除并返回集合中的顶部元素</p>
 
+<b>函数签名:</b>
+
+```go
+func (s Set[T]) Pop() (v T, ok bool)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    set "github.com/duke-git/lancet/v2/datastructure/set"
+)
+
+func main() {
+    s := set.NewSet[int]()
+    s.Add(1)
+    s.Add(2)
+    s.Add(3)
+
+    val, ok = s.Pop()
+
+    fmt.Println(val) // 3
+    fmt.Println(ok) // true
+}
+```