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14 Commits
v1.4.3 ... v1

Author SHA1 Message Date
dudaodong
69b34faeec update build tag 2024-12-04 19:07:58 +08:00
dudaodong
9af645606b release v1.4.6 2024-12-04 19:02:07 +08:00
dudaodong
f58b706285 fix: fix issue #275 2024-12-04 16:37:46 +08:00
dudaodong
0f9683a764 release v1.4.5 2024-12-04 10:42:55 +08:00
dudaodong
4595a94b4c update doc 2024-12-04 10:40:18 +08:00
dudaodong
e1e15883e9 fix: MaxInt was added only in 1.17 use instead 2024-11-27 15:09:23 +08:00
dudaodong
b4e7977feb release v1.4.4 2024-10-09 15:16:22 +08:00
dudaodong
1d3585b22f fix: fix bug of Comma, issue #248 2024-09-29 11:52:01 +08:00
dudaodong
2145808268 feat: add new functions in datetime and strutils 2024-09-09 14:33:15 +08:00
dudaodong
cb7ff904d9 doc: update doc 2024-09-04 10:21:46 +08:00
dudaodong
87c8799e9e doc: update doc 2024-09-04 10:20:34 +08:00
dudaodong
c9a8c70ee6 feat: merge some new functions from v2 branch 2024-09-04 10:13:36 +08:00
dudaodong
ab2e5a3137 feat: add new functions 2024-09-03 20:25:06 +08:00
Chao Cai
b942b7a074 fix:convertor struct to map by struct ptr (#221)
Co-authored-by: emrysechobygo <emrysechobygo@hotmail.com>
2024-05-25 20:05:38 +08:00
35 changed files with 2556 additions and 373 deletions

View File

@@ -4,7 +4,7 @@
<br/>
![Go version](https://img.shields.io/badge/go-v1.16-9cf)
[![Release](https://img.shields.io/badge/release-1.4.3-green.svg)](https://github.com/duke-git/lancet/releases)
[![Release](https://img.shields.io/badge/release-1.4.6-green.svg)](https://github.com/duke-git/lancet/releases)
[![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
[![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
[![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -108,6 +108,7 @@ import "github.com/duke-git/lancet/convertor"
- [ToUrlBase64](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToUrlBase64)
- [ToRawStdBase64](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToRawStdBase64)
- [ToRawUrlBase64](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToRawUrlBase64)
- [ToBigInt](https://github.com/duke-git/lancet/blob/v1/docs/convertor.md#ToBigInt)
### 3. Cryptor package is for data encryption and decryption.
@@ -210,6 +211,9 @@ import "github.com/duke-git/lancet/datetime"
- [TimestampMilli](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#TimestampMilli)
- [TimestampMicro](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#TimestampMicro)
- [TimestampNano](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#TimestampNano)
- [TrackFuncTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#TrackFuncTime)
- [DaysBetween](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#DaysBetween)
- [GenerateDatetimesBetween](https://github.com/duke-git/lancet/blob/v1/docs/datetime.md#GenerateDatetimesBetween)
### 5. Fileutil package implements some basic functions for file operations.
@@ -276,6 +280,8 @@ import "github.com/duke-git/lancet/function"
- [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Curry)
- [Compose](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Compose)
- [Debounced](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Debounced)
- [Debounce](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Debounce)
- [Throttle](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Throttle)
- [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Delay)
- [Pipeline](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Pipeline)
- [Schedule](https://github.com/duke-git/lancet/blob/v1/docs/function.md#Schedule)
@@ -346,9 +352,15 @@ import "github.com/duke-git/lancet/random"
#### Function list:
- [RandBool](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandBool)
- [RandBoolSlice](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandBoolSlice)
- [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandBytes)
- [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandInt)
- [RandIntSlice](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandIntSlice)
- [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandString)
- [RandStringSlice](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandStringSlice)
- [RandFloat](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandFloat)
- [RandFloats](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandFloats)
- [RandUpper](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandUpper)
- [RandLower](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandLower)
- [RandNumeral](https://github.com/duke-git/lancet/blob/v1/docs/random.md#RandNumeral)
@@ -466,6 +478,13 @@ import "github.com/duke-git/lancet/strutil"
- [RemoveWhiteSpace](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#RemoveWhiteSpace)
- [SubInBetween](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#SubInBetween)
- [HammingDistance](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#HammingDistance)
- [Concat](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Concat)
- [Ellipsis](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Ellipsis)
- [Shuffle](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Shuffle)
- [Rotate](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Rotate)
- [TemplateReplace](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#TemplateReplace)
- [RegexMatchAllGroups](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#RegexMatchAllGroups)
- [Cut](https://github.com/duke-git/lancet/blob/v1/docs/strutil.md#Cut)
### 14. System package contain some functions about os, runtime, shell command.

View File

@@ -4,7 +4,7 @@
<br/>
![Go version](https://img.shields.io/badge/go-v1.16-9cf)
[![Release](https://img.shields.io/badge/release-1.4.3-green.svg)](https://github.com/duke-git/lancet/releases)
[![Release](https://img.shields.io/badge/release-1.4.6-green.svg)](https://github.com/duke-git/lancet/releases)
[![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
[![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
[![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -107,6 +107,7 @@ import "github.com/duke-git/lancet/convertor"
- [ToUrlBase64](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToUrlBase64)
- [ToRawStdBase64](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToRawStdBase64)
- [ToRawUrlBase64](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToRawUrlBase64)
- [ToBigInt](https://github.com/duke-git/lancet/blob/v1/docs/convertor_zh-CN.md#ToBigInt)
### 3. cryptor 加密包支持数据加密和解密,获取 md5hash 值。支持 base64, md5, hmac, aes, des, rsa。
@@ -213,6 +214,9 @@ import "github.com/duke-git/lancet/datetime"
- [TimestampMilli](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#TimestampMilli)
- [TimestampMicro](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#TimestampMicro)
- [TimestampNano](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#TimestampNano)
- [TrackFuncTime](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#TrackFuncTime)
- [DaysBetween](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#DaysBetween)
- [GenerateDatetimesBetween](https://github.com/duke-git/lancet/blob/v1/docs/datetime_zh-CN.md#GenerateDatetimesBetween)
### 5. fileutil 包支持文件基本操作。
@@ -279,6 +283,8 @@ import "github.com/duke-git/lancet/function"
- [Curry](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Curry)
- [Compose](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Compose)
- [Debounced](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Debounced)
- [Debounce](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Debounce)
- [Throttle](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Throttle)
- [Delay](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Delay)
- [Pipeline](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Pipeline)
- [Schedule](https://github.com/duke-git/lancet/blob/v1/docs/function_zh-CN.md#Schedule)
@@ -348,9 +354,15 @@ import "github.com/duke-git/lancet/random"
#### 函数列表:
- [RandBool](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandBool)
- [RandBoolSlice](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandBoolSlice)
- [RandBytes](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandBytes)
- [RandInt](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandInt)
- [RandIntSlice](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandIntSlice)
- [RandString](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandString)
- [RandStringSlice](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandStringSlice)
- [RandFloat](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandFloat)
- [RandFloats](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandFloats)
- [RandUpper](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandUpper)
- [RandLower](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandLower)
- [RandNumeral](https://github.com/duke-git/lancet/blob/v1/docs/random_zh-CN.md#RandNumeral)
@@ -468,6 +480,13 @@ import "github.com/duke-git/lancet/strutil"
- [RemoveWhiteSpace](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#RemoveWhiteSpace)
- [SubInBetween](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#SubInBetween)
- [HammingDistance](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#HammingDistance)
- [Concat](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Concat)
- [Ellipsis](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Ellipsis)
- [Shuffle](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Shuffle)
- [Rotate](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Rotate)
- [TemplateReplace](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#TemplateReplace)
- [RegexMatchAllGroups](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#RegexMatchAllGroups)
- [Cut](https://github.com/duke-git/lancet/blob/v1/docs/strutil_zh-CN.md#Cut)
### 14. system 包含 os, runtime, shell command 相关函数。

View File

@@ -3,6 +3,7 @@ package compare
import (
"bytes"
"encoding/json"
"math/big"
"reflect"
"time"
@@ -36,7 +37,8 @@ func compareRefValue(operator string, leftObj, rightObj interface{}, kind reflec
case reflect.Struct:
// compare time
if leftVal.CanConvert(timeType) {
// fix: issue #275
if canConvert(leftObj, timeType) {
timeObj1, ok := leftObj.(time.Time)
if !ok {
timeObj1 = leftVal.Convert(timeType).Interface().(time.Time)
@@ -58,7 +60,7 @@ func compareRefValue(operator string, leftObj, rightObj interface{}, kind reflec
case reflect.Slice:
// compare []byte
if leftVal.CanConvert(bytesType) {
if canConvert(leftObj, bytesType) {
bytesObj1, ok := leftObj.([]byte)
if !ok {
bytesObj1 = leftVal.Convert(bytesType).Interface().([]byte)
@@ -155,169 +157,141 @@ func compareBasicValue(operator string, leftValue, rightValue interface{}) bool
}
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 int, uint, int8, uint8, int16, uint16, int32, uint32, int64, uint64:
left, err := convertor.ToBigInt(leftValue)
if err != nil {
return false
}
case float32, float64, int, uint, int8, uint8, int16, uint16, int32, uint32, int64, uint64:
right, err := convertor.ToBigInt(rightValue)
if err != nil {
return false
}
return compareBigInt(operator, left, right)
case float32, float64:
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
}
}
right, err := convertor.ToFloat(rightValue)
if err != nil {
return false
}
return compareFloats(operator, left, right)
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
}
}
return compareStrings(operator, left, right)
}
case bool:
left := leftVal
switch right := rightValue.(type) {
case bool:
switch operator {
case equal:
if left == right {
return true
}
}
return compareBools(operator, left, right)
}
case json.Number:
if left, err := leftVal.Float64(); err == nil {
switch rightVal := rightValue.(type) {
case json.Number:
if right, err := rightVal.Float64(); err == nil {
return compareFloats(operator, left, right)
}
case float32, float64:
right, err := convertor.ToFloat(rightValue)
if err != nil {
return false
}
return compareFloats(operator, left, right)
case int, uint, int8, uint8, int16, uint16, int32, uint32, int64, uint64:
right, err := convertor.ToBigInt(rightValue)
if err != nil {
return false
}
left, err := convertor.ToBigInt(left)
return compareBigInt(operator, left, right)
}
}
}
return false
}
// compareBigInt compares two big.Int values based on the operator
func compareBigInt(operator string, left, right *big.Int) bool {
switch operator {
case equal:
return left.Cmp(right) == 0
case lessThan:
return left.Cmp(right) < 0
case greaterThan:
return left.Cmp(right) > 0
case lessOrEqual:
return left.Cmp(right) <= 0
case greaterOrEqual:
return left.Cmp(right) >= 0
}
return false
}
// compareFloats compares two float64 values based on the operator
func compareFloats(operator string, left, right float64) bool {
switch operator {
case equal:
return left == right
case lessThan:
return left < right
case greaterThan:
return left > right
case lessOrEqual:
return left <= right
case greaterOrEqual:
return left >= right
}
return false
}
// compareStrings compares two string values based on the operator
func compareStrings(operator string, left, right string) bool {
switch operator {
case equal:
return left == right
case lessThan:
return left < right
case greaterThan:
return left > right
case lessOrEqual:
return left <= right
case greaterOrEqual:
return left >= right
}
return false
}
// compareBools compares two boolean values based on the operator
func compareBools(operator string, left, right bool) bool {
switch operator {
case equal:
return left == right
}
return false
}
// canConvert checks if the value can be converted to the target type
func canConvert(value interface{}, targetType reflect.Type) bool {
v := reflect.ValueOf(value)
defer func() {
if r := recover(); r != nil {
}
}()
v.Convert(targetType)
return true
}

View File

@@ -1,6 +1,7 @@
package compare
import (
"encoding/json"
"testing"
"time"
@@ -70,18 +71,28 @@ func TestEqualValue(t *testing.T) {
}
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"))
tests := []struct {
left interface{}
right interface{}
want bool
}{
{1, 2, true},
{1.1, 2.2, true},
{"a", "b", true},
{time.Now(), time.Now().Add(time.Second), true},
{[]byte("hello1"), []byte("hello2"), true},
{json.Number("123"), json.Number("124"), true},
{645680099112988673, 645680099112988675, true},
{1, 1, false},
{1, int64(1), false},
}
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)))
for _, tt := range tests {
assert.Equal(tt.want, LessThan(tt.left, tt.right))
}
}
func TestGreaterThan(t *testing.T) {

View File

@@ -14,6 +14,7 @@ import (
"fmt"
"io"
"math"
"math/big"
"reflect"
"regexp"
"strconv"
@@ -197,6 +198,7 @@ func StructToMap(value interface{}) (map[string]interface{}, error) {
if t.Kind() == reflect.Ptr {
t = t.Elem()
v = v.Elem()
}
if t.Kind() != reflect.Struct {
return nil, fmt.Errorf("data type %T not support, shuld be struct or pointer to struct", value)
@@ -459,3 +461,36 @@ func ToRawUrlBase64(value interface{}) string {
return base64.RawURLEncoding.EncodeToString(marshal)
}
}
// ToBigInt converts an integer of any supported type (int, int64, uint64, etc.) to *big.Int
// Play: todo
func ToBigInt(v interface{}) (*big.Int, error) {
result := new(big.Int)
switch v := (v).(type) {
case int:
result.SetInt64(int64(v))
case int8:
result.SetInt64(int64(v))
case int16:
result.SetInt64(int64(v))
case int32:
result.SetInt64(int64(v))
case int64:
result.SetInt64(v)
case uint:
result.SetUint64(uint64(v))
case uint8:
result.SetUint64(uint64(v))
case uint16:
result.SetUint64(uint64(v))
case uint32:
result.SetUint64(uint64(v))
case uint64:
result.SetUint64(v)
default:
return nil, fmt.Errorf("unsupported type: %T", v)
}
return result, nil
}

View File

@@ -240,7 +240,8 @@ func setStructField(structObj interface{}, fieldName string, fieldValue interfac
if fieldVal.Type() != val.Type() {
if val.CanConvert(fieldVal.Type()) {
// fix: issue #275
if canConvert(fieldValue, fieldVal.Type()) {
fieldVal.Set(val.Convert(fieldVal.Type()))
return nil
}
@@ -284,3 +285,14 @@ func getFieldNameByJsonTag(structObj interface{}, jsonTag string) string {
return ""
}
func canConvert(value interface{}, targetType reflect.Type) bool {
v := reflect.ValueOf(value)
defer func() {
if r := recover(); r != nil {
}
}()
v.Convert(targetType)
return true
}

View File

@@ -5,6 +5,7 @@ import (
"errors"
"fmt"
"io"
"math/big"
"reflect"
"testing"
"unicode/utf8"
@@ -156,13 +157,17 @@ func TestStructToMap(t *testing.T) {
Name string `json:"name"`
age int
}
p := People{
p := &People{
"test",
100,
}
pm, _ := StructToMap(p)
var expected = map[string]interface{}{"name": "test"}
data, _ := StructToMap(p)
var expected = map[string]interface{}{
"name": "test",
}
assert.Equal(expected, pm)
assert.Equal(expected, data)
}
func TestColorHexToRGB(t *testing.T) {
@@ -680,3 +685,83 @@ func TestToRawUrlBase64(t *testing.T) {
d15, _ := base64.RawURLEncoding.DecodeString(r15)
assert.Equal("4+3/4?=", string(d15))
}
func TestToBigInt(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestToBigInt")
tests := []struct {
name string
input interface{}
want *big.Int
hasErr bool
}{
{
name: "int",
input: 42,
want: big.NewInt(42),
},
{
name: "int8",
input: int8(127),
want: big.NewInt(127),
},
{
name: "int16",
input: int16(32000),
want: big.NewInt(32000),
},
{
name: "int32",
input: int32(123456),
want: big.NewInt(123456),
},
{
name: "int64",
input: int64(987654321),
want: big.NewInt(987654321),
},
{
name: "uint",
input: uint(987654321),
want: big.NewInt(987654321),
},
{
name: "uint8",
input: uint8(255),
want: big.NewInt(255),
},
{
name: "uint16",
input: uint16(65535),
want: big.NewInt(65535),
},
{
name: "uint32",
input: uint32(4294967295),
want: big.NewInt(4294967295),
},
{
name: "uint64",
input: uint64(18446744073709551615),
want: new(big.Int).SetUint64(18446744073709551615),
},
{
name: "unsupported type",
input: 3.14, // Unsupported type
hasErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := ToBigInt(tt.input)
if (err != nil) != tt.hasErr {
t.Errorf("ToBigInt() error = %v, hasErr %v", err, tt.hasErr)
return
}
assert.Equal(tt.want, got)
})
}
}

View File

@@ -31,6 +31,7 @@ package datetime
import (
"fmt"
"runtime"
"strings"
"time"
)
@@ -321,3 +322,61 @@ func TimestampNano(timezone ...string) int64 {
return t.UnixNano()
}
// TrackFuncTime track the time of function execution.
// call it at top of the func like `defer TrackFuncTime(time.Now())()`
func TrackFuncTime(pre time.Time) func() {
callerName := getCallerName()
return func() {
elapsed := time.Since(pre)
fmt.Printf("Function %s execution time:\t %v", callerName, elapsed)
}
}
func getCallerName() string {
pc, _, _, ok := runtime.Caller(2)
if !ok {
return "Unknown"
}
fn := runtime.FuncForPC(pc)
if fn == nil {
return "Unknown"
}
fullName := fn.Name()
if lastDot := strings.LastIndex(fullName, "."); lastDot != -1 {
return fullName[lastDot+1:]
}
return fullName
}
// DaysBetween returns the number of days between two times.
func DaysBetween(start, end time.Time) int {
duration := end.Sub(start)
days := int(duration.Hours() / 24)
return days
}
// GenerateDatetimesBetween returns a slice of strings between two times.
// layout: the format of the datetime string
// interval: the interval between two datetimes
func GenerateDatetimesBetween(start, end time.Time, layout string, interval string) ([]string, error) {
var result []string
if start.After(end) {
start, end = end, start
}
duration, err := time.ParseDuration(interval)
if err != nil {
return nil, err
}
for current := start; !current.After(end); current = current.Add(duration) {
result = append(result, current.Format(layout))
}
return result, nil
}

View File

@@ -333,3 +333,114 @@ func TestTimestamp(t *testing.T) {
ts4 := TimestampNano()
t.Log(ts4)
}
func TestTrackFuncTime(t *testing.T) {
defer TrackFuncTime(time.Now())()
var n int
for i := 0; i < 5000000; i++ {
n++
}
}
func TestDaysBetween(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestDaysBetween")
tests := []struct {
start time.Time
end time.Time
expected int
}{
{
start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC),
expected: 9,
},
{
start: time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
expected: -9,
},
{
start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
expected: 0,
},
{
start: time.Date(2024, time.January, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.December, 31, 0, 0, 0, 0, time.UTC),
expected: 365,
},
{
start: time.Date(2024, time.March, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.March, 31, 0, 0, 0, 0, time.UTC),
expected: 30,
},
}
for _, tt := range tests {
result := DaysBetween(tt.start, tt.end)
assert.Equal(tt.expected, result)
}
}
func TestGenerateDatetimesBetween(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestGenerateDatetimesBetween")
tests := []struct {
start time.Time
end time.Time
layout string
interval string
expected []string
}{
{
start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC),
layout: "2006-01-02 15:04:05",
interval: "30m",
expected: []string{
"2024-09-01 00:00:00",
"2024-09-01 00:30:00",
"2024-09-01 01:00:00",
"2024-09-01 01:30:00",
"2024-09-01 02:00:00",
},
},
{
start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
layout: "2006-01-02 15:04:05",
interval: "1h",
expected: []string{"2024-09-01 00:00:00"},
},
{
start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
end: time.Date(2024, time.September, 1, 3, 0, 0, 0, time.UTC),
layout: "2006-01-02 15:04:05",
interval: "2h",
expected: []string{
"2024-09-01 00:00:00",
"2024-09-01 02:00:00",
},
},
}
for _, tt := range tests {
result, err := GenerateDatetimesBetween(tt.start, tt.end, tt.layout, tt.interval)
assert.Equal(tt.expected, result)
assert.IsNil(err)
}
t.Run("Invalid interval", func(t *testing.T) {
_, err := GenerateDatetimesBetween(time.Now(), time.Now(), "2006-01-02 15:04:05", "invalid")
if err == nil {
t.Fatal("Expected error, got nil")
}
})
}

View File

@@ -42,7 +42,7 @@ import (
<b>Signature:</b>
```go
func Equal(left, right any) bool
func Equal(left, right interface{}) bool
```
<b>Example:</b>
@@ -91,7 +91,7 @@ func main() {
<b>Signature:</b>
```go
func EqualValue(left, right any) bool
func EqualValue(left, right interface{}) bool
```
<b>Example:</b>
@@ -130,7 +130,7 @@ func main() {
<b>Signature:</b>
```go
func LessThan(left, right any) bool
func LessThan(left, right interface{}) bool
```
<b>Example:</b>
@@ -179,7 +179,7 @@ func main() {
<b>Signature:</b>
```go
func GreaterThan(left, right any) bool
func GreaterThan(left, right interface{}) bool
```
<b>Example:</b>
@@ -231,7 +231,7 @@ func main() {
<b>Signature:</b>
```go
func LessOrEqual(left, right any) bool
func LessOrEqual(left, right interface{}) bool
```
<b>Example:</b>
@@ -280,7 +280,7 @@ func main() {
<b>Signature:</b>
```go
func GreaterOrEqual(left, right any) bool
func GreaterOrEqual(left, right interface{}) bool
```
<b>Example:</b>

View File

@@ -42,7 +42,7 @@ import (
<b>函数签名:</b>
```go
func Equal(left, right any) bool
func Equal(left, right interface{}) bool
```
<b>示例:</b>
@@ -91,7 +91,7 @@ func main() {
<b>函数签名:</b>
```go
func EqualValue(left, right any) bool
func EqualValue(left, right interface{}) bool
```
<b>示例:</b>
@@ -130,7 +130,7 @@ func main() {
<b>函数签名:</b>
```go
func LessThan(left, right any) bool
func LessThan(left, right interface{}) bool
```
<b>示例:</b>
@@ -179,7 +179,7 @@ func main() {
<b>函数签名:</b>
```go
func GreaterThan(left, right any) bool
func GreaterThan(left, right interface{}) bool
```
<b>示例:</b>
@@ -231,7 +231,7 @@ func main() {
<b>函数签名:</b>
```go
func LessOrEqual(left, right any) bool
func LessOrEqual(left, right interface{}) bool
```
<b>示例:</b>
@@ -280,7 +280,7 @@ func main() {
<b>函数签名:</b>
```go
func GreaterOrEqual(left, right any) bool
func GreaterOrEqual(left, right interface{}) bool
```
<b>示例:</b>

View File

@@ -45,7 +45,7 @@ import (
- [ToUrlBase64](#ToUrlBase64)
- [ToRawStdBase64](#ToRawStdBase64)
- [ToRawUrlBase64](#ToRawUrlBase64)
- [ToBigInt](#ToBigInt)
<div STYLE="page-break-after: always;"></div>
@@ -454,7 +454,7 @@ func main() {
<b>Signature:</b>
```go
func EncodeByte(data any) ([]byte, error)
func EncodeByte(data interface{}) ([]byte, error)
```
<b>Example:</b>
@@ -480,7 +480,7 @@ func main() {
<b>Signature:</b>
```go
func DecodeByte(data []byte, target any) error
func DecodeByte(data []byte, target interface{}) error
```
<b>Example:</b>
@@ -508,7 +508,7 @@ func main() {
<b>Signature:</b>
```go
func DeepClone[T any](src T) T
func DeepClone[T interface{}](src T) T
```
<b>Example:</b>
@@ -753,7 +753,7 @@ func main() {
<b>Signature:</b>
```go
func ToStdBase64(value any) string
func ToStdBase64(value interface{}) string
```
<b>Example:</b>
@@ -785,7 +785,7 @@ func main() {
afterEncode = convertor.ToStdBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -825,7 +825,7 @@ func main() {
<b>Signature:</b>
```go
func ToUrlBase64(value any) string
func ToUrlBase64(value interface{}) string
```
<b>Example:</b>
@@ -855,7 +855,7 @@ func main() {
afterEncode = convertor.ToUrlBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -894,7 +894,7 @@ func main() {
<b>Signature:</b>
```go
func ToRawStdBase64(value any) string
func ToRawStdBase64(value interface{}) string
```
<b>Example:</b>
@@ -921,7 +921,7 @@ func main() {
afterEncode = convertor.ToRawStdBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -958,7 +958,7 @@ func main() {
<b>Signature:</b>
```go
func ToRawUrlBase64(value any) string
func ToRawUrlBase64(value interface{}) string
```
<b>Example:</b>
@@ -985,7 +985,7 @@ func main() {
afterEncode = convertor.ToRawUrlBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -1013,4 +1013,34 @@ func main() {
// dHJ1ZQ
// ZXJy
}
```
### <span id="ToBigInt">ToBigInt</span>
<p>Convert value to bigInt.</p>
<b>Signature:</b>
```go
func ToBigInt(v interface{}) (*big.Int, error)
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/convertor"
)
func main() {
n := 9876543210
bigInt, _ := convertor.ToBigInt(n)
fmt.Println(bigInt)
// Output:
// 9876543210
}
```

View File

@@ -45,6 +45,7 @@ import (
- [ToUrlBase64](#ToUrlBase64)
- [ToRawStdBase64](#ToRawStdBase64)
- [ToRawUrlBase64](#ToRawUrlBase64)
- [ToBigInt](#ToBigInt)
<div STYLE="page-break-after: always;"></div>
@@ -453,7 +454,7 @@ func main() {
<b>函数签名:</b>
```go
func EncodeByte(data any) ([]byte, error)
func EncodeByte(data interface{}) ([]byte, error)
```
<b>例子:</b>
@@ -479,7 +480,7 @@ func main() {
<b>函数签名:</b>
```go
func DecodeByte(data []byte, target any) error
func DecodeByte(data []byte, target interface{}) error
```
<b>例子:</b>
@@ -507,7 +508,7 @@ func main() {
<b>函数签名:</b>
```go
func DeepClone[T any](src T) T
func DeepClone[T interface{}](src T) T
```
<b>示例:</b>
@@ -753,7 +754,7 @@ func main() {
<b>函数签名:</b>
```go
func ToStdBase64(value any) string
func ToStdBase64(value interface{}) string
```
<b>示例:</b>
@@ -763,7 +764,7 @@ package main
import (
"fmt"
"github.com/duke-git/lancet/v2/convertor"
"github.com/duke-git/lancet/convertor"
)
func main() {
@@ -785,7 +786,7 @@ func main() {
afterEncode = convertor.ToStdBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -825,7 +826,7 @@ func main() {
<b>函数签名:</b>
```go
func ToUrlBase64(value any) string
func ToUrlBase64(value interface{}) string
```
<b>示例:</b>
@@ -835,7 +836,7 @@ package main
import (
"fmt"
"github.com/duke-git/lancet/v2/convertor"
"github.com/duke-git/lancet/convertor"
)
func main() {
@@ -855,7 +856,7 @@ func main() {
afterEncode = convertor.ToUrlBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -894,7 +895,7 @@ func main() {
<b>函数签名:</b>
```go
func ToRawStdBase64(value any) string
func ToRawStdBase64(value interface{}) string
```
<b>示例:</b>
@@ -904,7 +905,7 @@ package main
import (
"fmt"
"github.com/duke-git/lancet/v2/convertor"
"github.com/duke-git/lancet/convertor"
)
func main() {
@@ -921,7 +922,7 @@ func main() {
afterEncode = convertor.ToRawStdBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -958,7 +959,7 @@ func main() {
<b>函数签名:</b>
```go
func ToRawUrlBase64(value any) string
func ToRawUrlBase64(value interface{}) string
```
<b>示例:</b>
@@ -968,7 +969,7 @@ package main
import (
"fmt"
"github.com/duke-git/lancet/v2/convertor"
"github.com/duke-git/lancet/convertor"
)
func main() {
@@ -985,7 +986,7 @@ func main() {
afterEncode = convertor.ToRawUrlBase64(intVal)
fmt.Println(afterEncode)
mapVal := map[string]any{"a": "hi", "b": 2, "c": struct {
mapVal := map[string]interface{}{"a": "hi", "b": 2, "c": struct {
A string
B int
}{"hello", 3}}
@@ -1013,4 +1014,34 @@ func main() {
// dHJ1ZQ
// ZXJy
}
```
### <span id="ToBigInt">ToBigInt</span>
<p>将整数值转换为bigInt。</p>
<b>函数签名:</b>
```go
func ToBigInt(v interface{}) (*big.Int, error)
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/convertor"
)
func main() {
n := 9876543210
bigInt, _ := convertor.ToBigInt(n)
fmt.Println(bigInt)
// Output:
// 9876543210
}
```

View File

@@ -62,6 +62,9 @@ import (
- [TimestampMilli](#TimestampMilli)
- [TimestampMicro](#TimestampMicro)
- [TimestampNano](#TimestampNano)
- [TrackFuncTime](#TrackFuncTime)
- [DaysBetween](#DaysBetween)
- [GenerateDatetimesBetween](#GenerateDatetimesBetween)
<div STYLE="page-break-after: always;"></div>
@@ -1360,3 +1363,106 @@ func main() {
// 1690363051331788000
}
```
### <span id="TrackFuncTime">TrackFuncTime</span>
<p>Tracks function execution time.</p>
<b>Signature:</b>
```go
func TrackFuncTime(pre time.Time) func()
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/datetime"
)
func main() {
defer datetime.TrackFuncTime(time.Now())()
var n int
for i := 0; i < 5000000; i++ {
n++
}
fmt.Println(1) // Function main execution time: 1.460287ms
}
```
### <span id="DaysBetween">DaysBetween</span>
<p>Returns the number of days between two times.</p>
<b>Signature:</b>
```go
func DaysBetween(start, end time.Time) int
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/datetime"
)
func main() {
start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
end := time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC)
result := datetime.DaysBetween(start, end)
fmt.Println(result)
// Output:
// 9
}
```
### <span id="GenerateDatetimesBetween">GenerateDatetimesBetween</span>
<p>Returns a slice of strings between two times. `layout`: the format of the datetime string.`interval`: the interval between two datetimes.</p>
<b>Signature:</b>
```go
func GenerateDatetimesBetween(start, end time.Time, layout string, interval string) ([]string, error)
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/datetime"
)
func main() {
start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
end := time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC)
layout := "2006-01-02 15:04:05"
interval := "1h"
result, err := datetime.GenerateDatetimesBetween(start, end, layout, interval)
fmt.Println(result)
fmt.Println(err)
// Output:
// [2024-09-01 00:00:00 2024-09-01 01:00:00 2024-09-01 02:00:00]
// <nil>
}
```

View File

@@ -62,6 +62,10 @@ import (
- [TimestampMilli](#TimestampMilli)
- [TimestampMicro](#TimestampMicro)
- [TimestampNano](#TimestampNano)
- [TrackFuncTime](#TrackFuncTime)
- [DaysBetween](#DaysBetween)
- [GenerateDatetimesBetween](#GenerateDatetimesBetween)
<div STYLE="page-break-after: always;"></div>
@@ -1279,4 +1283,108 @@ func main() {
// Output:
// 1690363051331788000
}
```
### <span id="TrackFuncTime">TrackFuncTime</span>
<p>返回两个日期之间的天数差。</p>
<b>函数签名:</b>
```go
func TrackFuncTime(pre time.Time) func()
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/datetime"
)
func main() {
defer datetime.TrackFuncTime(time.Now())()
var n int
for i := 0; i < 5000000; i++ {
n++
}
// Output:
// Function main execution time: 1.608195ms
}
```
### <span id="DaysBetween">DaysBetween</span>
<p>返回两个日期之间的天数差。</p>
<b>函数签名:</b>
```go
func DaysBetween(start, end time.Time) int
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/datetime"
)
func main() {
start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
end := time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC)
result := datetime.DaysBetween(start, end)
fmt.Println(result)
// Output:
// 9
}
```
### <span id="GenerateDatetimesBetween">GenerateDatetimesBetween</span>
<p>生成从start到end的所有日期时间的字符串列表。layout参数表示时间格式例如"2006-01-02 15:04:05"interval参数表示时间间隔例如"1h"表示1小时"30m"表示30分钟。</p>
<b>函数签名:</b>
```go
func GenerateDatetimesBetween(start, end time.Time, layout string, interval string) ([]string, error)
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/datetime"
)
func main() {
start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
end := time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC)
layout := "2006-01-02 15:04:05"
interval := "1h"
result, err := datetime.GenerateDatetimesBetween(start, end, layout, interval)
fmt.Println(result)
fmt.Println(err)
// Output:
// [2024-09-01 00:00:00 2024-09-01 01:00:00 2024-09-01 02:00:00]
// <nil>
}
```

View File

@@ -902,7 +902,7 @@ package main
import (
"fmt"
"github.com/duke-git/lancet/v2/fileutil"
"github.com/duke-git/lancet/fileutil"
)
func main() {

View File

@@ -900,7 +900,7 @@ package main
import (
"fmt"
"github.com/duke-git/lancet/v2/fileutil"
"github.com/duke-git/lancet/fileutil"
)
func main() {

View File

@@ -42,7 +42,7 @@ Param should be number or numberic string.</p>
<b>Signature:</b>
```go
func Comma(value interface{}, symbol string) string
func Comma(value interface{}, prefixSymbol string) string
```
<b>Example:</b>

View File

@@ -41,7 +41,7 @@ import (
<b>函数签名:</b>
```go
func Comma(v interface{}, symbol string) string
func Comma(v interface{}, prefixSymbol string) string
```
<b>例子:</b>

View File

@@ -27,7 +27,9 @@ import (
- [Before](#Before)
- [Curry](#Curry)
- [Compose](#Compose)
- [Debounced](#Debounced)
- [Debounce](#Debounce)
- [Debounced<sup>deprecated</sup>](#Debounced)
- [Throttle](#Throttle)
- [Delay](#Delay)
- [Pipeline](#Pipeline)
- [Schedule](#Schedule)
@@ -199,7 +201,7 @@ func main() {
### <span id="Debounced">Debounced</span>
<p>Creates a debounced function that delays invoking fn until after wait duration have elapsed since the last time the debounced function was invoked.</p>
<p>Creates a debounced function that delays invoking fn until after wait duration have elapsed since the last time the debounced function was invoked. This function is deprecated. use Debounce instead.</p>
<b>Signature:</b>
@@ -238,6 +240,53 @@ func main() {
}
```
### <span id="Debounce">Debounce</span>
<p>Creates a debounced version of the provided function. The debounced function will only invoke the original function after the specified delay has passed since the last time it was invoked. It also supports canceling the debounce.</p>
<b>Signature:</b>
```go
func Debounce(fn func(), delay time.Duration) (debouncedFn func(), cancelFn func())
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/function"
)
func main() {
callCount := 0
fn := func() {
callCount++
}
debouncedFn, _ := function.Debounce(fn, 500*time.Millisecond)
for i := 0; i < 10; i++ {
debouncedFn()
time.Sleep(50 * time.Millisecond)
}
time.Sleep(1 * time.Second)
fmt.Println(callCount)
debouncedFn()
time.Sleep(1 * time.Second)
fmt.Println(callCount)
// Output:
// 1
// 2
}
```
### <span id="Delay">Delay</span>
<p>Invoke function after delayed time.</p>
@@ -266,6 +315,48 @@ func main() {
}
```
### <span id="Throttle">Throttle</span>
<p>Creates a throttled version of the provided function. The returned function guarantees that it will only be invoked at most once per interval.</p>
<b>Signature:</b>
```go
func Throttle(fn func(), interval time.Duration) func()
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/function"
)
func main() {
callCount := 0
fn := func() {
callCount++
}
throttledFn := function.Throttle(fn, 1*time.Second)
for i := 0; i < 5; i++ {
throttledFn()
}
time.Sleep(1 * time.Second)
fmt.Println(callCount)
// Output:
// 1
}
```
### <span id="Schedule">Schedule</span>
<p>Invoke function every duration time, until close the returned bool chan.</p>

View File

@@ -27,7 +27,9 @@ import (
- [Before](#Before)
- [Curry](#Curry)
- [Compose](#Compose)
- [Debounced](#Debounced)
- [Debounce](#Debounce)
- [Debounced<sup>deprecated</sup>](#Debounced)
- [Throttle](#Throttle)
- [Delay](#Delay)
- [Pipeline](#Pipeline)
- [Schedule](#Schedule)
@@ -197,6 +199,53 @@ func main() {
}
```
### <span id="Debounce">Debounce</span>
<p>创建一个函数的去抖动版本。该去抖动函数仅在上次调用后的指定延迟时间过去之后才会调用原始函数。支持取消去抖动。</p>
<b>函数签名:</b>
```go
func Debounce(fn func(), delay time.Duration) (debouncedFn func(), cancelFn func())
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/function"
)
func main() {
callCount := 0
fn := func() {
callCount++
}
debouncedFn, _ := function.Debounce(fn, 500*time.Millisecond)
for i := 0; i < 10; i++ {
debouncedFn()
time.Sleep(50 * time.Millisecond)
}
time.Sleep(1 * time.Second)
fmt.Println(callCount)
debouncedFn()
time.Sleep(1 * time.Second)
fmt.Println(callCount)
// Output:
// 1
// 2
}
```
### <span id="Debounced">Debounced</span>
<p>创建一个 debounced 函数,该函数延迟调用 fn 直到自上次调用 debounced 函数后等待持续时间过去。</p>
@@ -238,6 +287,48 @@ func main() {
}
```
### <span id="Throttle">Throttle</span>
<p>创建一个函数的节流版本。返回的函数保证在每个时间间隔内最多只会被调用一次。</p>
<b>函数签名:</b>
```go
func Throttle(fn func(), interval time.Duration) func()
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/function"
)
func main() {
callCount := 0
fn := func() {
callCount++
}
throttledFn := function.Throttle(fn, 1*time.Second)
for i := 0; i < 5; i++ {
throttledFn()
}
time.Sleep(1 * time.Second)
fmt.Println(callCount)
// Output:
// 1
}
```
### <span id="Delay">Delay</span>
<p>延迟delay时间后调用函数</p>

View File

@@ -30,7 +30,13 @@ import (
- [RandNumeral](#RandNumeral)
- [RandNumeralOrLetter](#RandNumeralOrLetter)
- [UUIdV4](#UUIdV4)
- [RandFloat](#RandFloat)
- [RandFloats](#RandFloats)
- [RandUniqueIntSlice](#RandUniqueIntSlice)
- [RandIntSlice](#RandIntSlice)
- [RandStringSlice](#RandStringSlice)
- [RandBool](#RandBool)
- [RandBoolSlice](#RandBoolSlice)
<div STYLE="page-break-after: always;"></div>
@@ -247,6 +253,58 @@ func main() {
}
```
### <span id="RandFloat">RandFloat</span>
<p>Generate a random float64 number between [min, max) with specific precision.</p>
<b>Signature:</b>
```go
func RandFloat(min, max float64, precision int) float64
```
<b>Example:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/zbD_tuobJtr)</span></b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
floatNumber := random.RandFloat(1.0, 5.0, 2)
fmt.Println(floatNumber) //2.14 (random number)
}
```
### <span id="RandFloats">RandFloats</span>
<p>Generate a slice of random float64 numbers of length n that do not repeat. Number range in [min, max)</p>
<b>Signature:</b>
```go
func RandFloats(length int, min, max float64, precision int) []float64
```
<b>Example:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/I3yndUQ-rhh)</span></b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
floatNumbers := random.RandFloats(5, 1.0, 5.0, 2)
fmt.Println(floatNumbers) //[3.42 3.99 1.3 2.38 4.23] (random)
}
```
### <span id="RandUniqueIntSlice">RandUniqueIntSlice</span>
<p>Generate a slice of random int of length n that do not repeat.</p>
@@ -272,3 +330,110 @@ func main() {
fmt.Println(result) //[0 4 7 1 5] (random)
}
```
### <span id="RandIntSlice">RandIntSlice</span>
<p>Generate a slice of random int. Number range in [min, max)</p>
<b>Signature:</b>
```go
func RandIntSlice(length, min, max int) []int
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
result := random.RandIntSlice(5, 0, 10)
fmt.Println(result) //[1 4 7 1 5] (random)
}
```
### <span id="RandStringSlice">RandStringSlice</span>
<p>Generate a slice of random string of length strLen based on charset. chartset should be one of the following: random.Numeral, random.LowwerLetters, random.UpperLetters random.Letters, random.SymbolChars, random.AllChars. or a combination of them.</p>
<b>Signature:</b>
```go
func RandStringSlice(charset string, sliceLen, strLen int) []string
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
strs := random.RandStringSlice(random.Letters, 4, 6)
fmt.Println(strs)
// output random string slice like below:
//[CooSMq RUFjDz FAeMPf heRyGv]
}
```
### <span id="RandBool">RandBool</span>
<p>Generate a random boolean value (true or false).</p>
<b>Signature:</b>
```go
func RandBool() bool
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
result := random.RandBool()
fmt.Println(result) // true or false (random)
}
```
### <span id="RandBoolSlice">RandBoolSlice</span>
<p>Generates a random boolean slice of specified length.</p>
<b>Signature:</b>
```go
func RandBoolSlice(length int) []bool
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
result := random.RandBoolSlice(2)
fmt.Println(result) // [true false] (random)
}
```

View File

@@ -30,7 +30,13 @@ import (
- [RandNumeral](#RandNumeral)
- [RandNumeralOrLetter](#RandNumeralOrLetter)
- [UUIdV4](#UUIdV4)
- [RandFloat](#RandFloat)
- [RandFloats](#RandFloats)
- [RandUniqueIntSlice](#RandUniqueIntSlice)
- [RandIntSlice](#RandIntSlice)
- [RandStringSlice](#RandStringSlice)
- [RandBool](#RandBool)
- [RandBoolSlice](#RandBoolSlice)
<div STYLE="page-break-after: always;"></div>
@@ -247,6 +253,58 @@ func main() {
}
```
### <span id="RandFloat">RandFloat</span>
<p>Generate a random float64 number between [min, max) with specific precision.</p>
<b>Signature:</b>
```go
func RandFloat(min, max float64, precision int) float64
```
<b>Example:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/zbD_tuobJtr)</span></b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
floatNumber := random.RandFloat(1.0, 5.0, 2)
fmt.Println(floatNumber) //2.14 (random number)
}
```
### <span id="RandFloats">RandFloats</span>
<p>Generate a slice of random float64 numbers of length n that do not repeat. Number range in [min, max)</p>
<b>Signature:</b>
```go
func RandFloats(length int, min, max float64, precision int) []float64
```
<b>Example:<span style="float:right;display:inline-block;">[Run](https://go.dev/play/p/I3yndUQ-rhh)</span></b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
floatNumbers := random.RandFloats(5, 1.0, 5.0, 2)
fmt.Println(floatNumbers) //[3.42 3.99 1.3 2.38 4.23] (random)
}
```
### <span id="RandUniqueIntSlice">RandUniqueIntSlice</span>
<p>生成一个不重复的长度为n的随机int切片。</p>
@@ -272,3 +330,110 @@ func main() {
fmt.Println(result) //[0 4 7 1 5] (random)
}
```
### <span id="RandIntSlice">RandIntSlice</span>
<p>生成一个特定长度的随机int切片数值范围[min, max)。</p>
<b>函数签名:</b>
```go
func RandIntSlice(length, min, max int) []int
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
result := random.RandIntSlice(5, 0, 10)
fmt.Println(result) //[1 2 7 1 5] (random)
}
```
### <span id="RandStringSlice">RandStringSlice</span>
<p>生成随机字符串slice. 字符串类型需要是以下几种或者它们的组合: random.Numeral, random.LowwerLetters, random.UpperLetters random.Letters, random.SymbolChars, random.AllChars。</p>
<b>函数签名:</b>
```go
func RandStringSlice(charset string, sliceLen, strLen int) []string
```
<b>实例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
strs := random.RandStringSlice(random.Letters, 4, 6)
fmt.Println(strs)
// output random string slice like below:
//[CooSMq RUFjDz FAeMPf heRyGv]
}
```
### <span id="RandBool">RandBool</span>
<p>生成随机bool值(true or false)。</p>
<b>函数签名:</b>
```go
func RandBool() bool
```
<b>实例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
result := random.RandBool()
fmt.Println(result) // true or false (random)
}
```
### <span id="RandBoolSlice">RandBoolSlice</span>
<p>生成特定长度的随机bool slice。</p>
<b>函数签名:</b>
```go
func RandBoolSlice(length int) []bool
```
<b>实例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/random"
)
func main() {
result := random.RandBoolSlice(2)
fmt.Println(result) // [true false] (random)
}
```

View File

@@ -60,6 +60,13 @@ import (
- [RemoveWhiteSpace](#RemoveWhiteSpace)
- [SubInBetween](#SubInBetween)
- [HammingDistance](#HammingDistance)
- [Concat](#Concat)
- [Ellipsis](#Ellipsis)
- [Shuffle](#Shuffle)
- [Rotate](#Rotate)
- [TemplateReplace](#TemplateReplace)
- [RegexMatchAllGroups](#RegexMatchAllGroups)
- [Cut](#Cut)
<div STYLE="page-break-after: always;"></div>
@@ -1340,4 +1347,229 @@ func main() {
// 0
// 1
}
```
### <span id="Concat">Concat</span>
<p>Concatenates strings. <b>length</b> is the length of the concatenated string. If unsure, pass 0 or a negative number.</p>
<b>Signature:</b>
```go
func Concat(length int, str ...string) string
```
<b>Example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result1 := strutil.Concat(12, "Hello", " ", "World", "!")
result2 := strutil.Concat(11, "Go", " ", "Language")
result3 := strutil.Concat(0, "An apple a ", "day", "keeps the", " doctor away")
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// Hello World!
// Go Language
// An apple a daykeeps the doctor away
}
```
### <span id="Ellipsis">Ellipsis</span>
<p>Truncates a string to a specified length and appends an ellipsis.</p>
<b>Signature:</b>
```go
func Ellipsis(str string, length int) string
```
<b>Example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result1 := strutil.Ellipsis("hello world", 5)
result2 := strutil.Ellipsis("你好,世界!", 2)
result3 := strutil.Ellipsis("😀😃😄😁😆", 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// hello...
// 你好...
// 😀😃😄...
}
```
### <span id="Shuffle">Shuffle</span>
<p>Shuffle the order of characters of given string.</p>
<b>Signature:</b>
```go
func Shuffle(str string) string
```
<b>Example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result := strutil.Shuffle("hello")
fmt.Println(result) //olelh (random order)
}
```
### <span id="Rotate">Rotate</span>
<p>Rotates the string by the specified number of characters.</p>
<b>Signature:</b>
```go
func Rotate(str string, shift int) string
```
<b>Example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result1 := Rotate("Hello", 0)
result2 := Rotate("Hello", 1)
result3 := Rotate("Hello", 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// Hello
// oHell
// loHel
}
### <span id="TemplateReplace">TemplateReplace</span>
<p>Replaces the placeholders in the template string with the corresponding values in the data map.The placeholders are enclosed in curly braces, e.g. {key}. for example, the template string is "Hello, {name}!", and the data map is {"name": "world"}, the result will be "Hello, world!".</p>
<b>Signature:</b>
```go
func TemplateReplace(template string, data map[string]string string
```
<b>example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
template := `Hello, my name is {name}, I'm {age} years old.`
data := map[string]string{
"name": "Bob",
"age": "20",
}
result := strutil.TemplateReplace(template, data)
fmt.Println(result)
// Output:
// Hello, my name is Bob, I'm 20 years old.
}
```
### <span id="RegexMatchAllGroups">RegexMatchAllGroups</span>
<p>Matches all subgroups in a string using a regular expression and returns the result.</p>
<b>Signature:</b>
```go
func RegexMatchAllGroups(pattern, str string) [][]string
```
<b>example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
pattern := `(\w+\.+\w+)@(\w+)\.(\w+)`
str := "Emails: john.doe@example.com and jane.doe@example.com"
result := strutil.RegexMatchAllGroups(pattern, str)
fmt.Println(result[0])
fmt.Println(result[1])
// Output:
// [john.doe@example.com john.doe example com]
// [jane.doe@example.com jane.doe example com]
}
```
### <span id="Cut">Cut</span>
<p>Splits the string at the first occurrence of separator.</p>
<b>Signature:</b>
```go
func Cut(str, sep string) (before, after string, found bool)
```
<b>example:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
str := "hello-world"
before, after, found := strutil.Cut("hello-world", "-")
fmt.Println(before)
fmt.Println(after)
fmt.Println(found)
// Output:
// hello
// world
// true
}
```

View File

@@ -60,6 +60,13 @@ import (
- [RemoveWhiteSpace](#RemoveWhiteSpace)
- [SubInBetween](#SubInBetween)
- [HammingDistance](#HammingDistance)
- [Concat](#Concat)
- [Ellipsis](#Ellipsis)
- [Shuffle](#Shuffle)
- [Rotate](#Rotate)
- [TemplateReplace](#TemplateReplace)
- [RegexMatchAllGroups](#RegexMatchAllGroups)
- [Cut](#Cut)
<div STYLE="page-break-after: always;"></div>
@@ -1373,4 +1380,230 @@ func main() {
// 0
// 1
}
```
```
### <span id="Concat">Concat</span>
<p>拼接字符串。length是拼接后字符串的长度如果不确定则传0或负数。</p>
<b>函数签名:</b>
```go
func Concat(length int, str ...string) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result1 := strutil.Concat(12, "Hello", " ", "World", "!")
result2 := strutil.Concat(11, "Go", " ", "Language")
result3 := strutil.Concat(0, "An apple a ", "day", "keeps the", " doctor away")
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// Hello World!
// Go Language
// An apple a daykeeps the doctor away
}
```
### <span id="Ellipsis">Ellipsis</span>
<p>将字符串截断到指定长度,并在末尾添加省略号。</p>
<b>函数签名:</b>
```go
func Ellipsis(str string, length int) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result1 := strutil.Ellipsis("hello world", 5)
result2 := strutil.Ellipsis("你好,世界!", 2)
result3 := strutil.Ellipsis("😀😃😄😁😆", 3)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// hello...
// 你好...
// 😀😃😄...
}
```
### <span id="Shuffle">Shuffle</span>
<p>打乱给定字符串中的字符顺序。</p>
<b>函数签名:</b>
```go
func Shuffle(str string) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result := strutil.Shuffle("hello")
fmt.Println(result) //olelh (random order)
}
```
### <span id="Rotate">Rotate</span>
<p>按指定的字符数旋转字符串。</p>
<b>函数签名:</b>
```go
func Rotate(str string, shift int) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
result1 := Rotate("Hello", 0)
result2 := Rotate("Hello", 1)
result3 := Rotate("Hello", 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// Hello
// oHell
// loHel
}
```
### <span id="TemplateReplace">TemplateReplace</span>
<p>将模板字符串中的占位符替换为数据映射中的相应值。占位符括在花括号中,例如 {key}。例如模板字符串为“Hello, {name}!”,数据映射为{"name": "world"}结果将为“Hello, world!”。</p>
<b>函数签名:</b>
```go
func TemplateReplace(template string, data map[string]string) string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
template := `Hello, my name is {name}, I'm {age} years old.`
data := map[string]string{
"name": "Bob",
"age": "20",
}
result := strutil.TemplateReplace(template, data)
fmt.Println(result)
// Output:
// Hello, my name is Bob, I'm 20 years old.
}
```
### <span id="RegexMatchAllGroups">RegexMatchAllGroups</span>
<p>使用正则表达式匹配字符串中的所有子组并返回结果。</p>
<b>函数签名:</b>
```go
func RegexMatchAllGroups(pattern, str string) [][]string
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
pattern := `(\w+\.+\w+)@(\w+)\.(\w+)`
str := "Emails: john.doe@example.com and jane.doe@example.com"
result := strutil.RegexMatchAllGroups(pattern, str)
fmt.Println(result[0])
fmt.Println(result[1])
// Output:
// [john.doe@example.com john.doe example com]
// [jane.doe@example.com jane.doe example com]
}
```
### <span id="Cut">Cut</span>
<p>分割字符串。</p>
<b>函数签名:</b>
```go
func Cut(str, sep string) (before, after string, found bool)
```
<b>示例:</b>
```go
import (
"fmt"
"github.com/duke-git/lancet/strutil"
)
func main() {
str := "hello-world"
before, after, found := strutil.Cut("hello-world", "-")
fmt.Println(before)
fmt.Println(after)
fmt.Println(found)
// Output:
// hello
// world
// true
}

View File

@@ -1225,7 +1225,7 @@ func IsMasterCard(v string) bool
```go
import (
"fmt"
"github.com/duke-git/lancet/v2/validator"
"github.com/duke-git/lancet/validator"
)
func main() {

View File

@@ -16,10 +16,10 @@ import (
"github.com/duke-git/lancet/convertor"
)
// Comma add comma to a number value by every 3 numbers from right. ahead by symbol char.
// Comma add comma to a number value by every 3 numbers from right. ahead by prefix symbol char.
// if value is invalid number string eg "aa", return empty string
// Comma("12345", "$") => "$12,345", Comma(12345, "$") => "$12,345"
func Comma(value interface{}, symbol string) string {
func Comma(value interface{}, prefixSymbol string) string {
numString := convertor.ToString(value)
_, err := strconv.ParseFloat(numString, 64)
@@ -27,17 +27,26 @@ func Comma(value interface{}, symbol string) string {
return ""
}
isNegative := strings.HasPrefix(numString, "-")
if isNegative {
numString = numString[1:]
}
index := strings.Index(numString, ".")
if index == -1 {
index = len(numString)
}
for index > 3 {
index = index - 3
index -= 3
numString = numString[:index] + "," + numString[index:]
}
return symbol + numString
if isNegative {
numString = "-" + numString
}
return prefixSymbol + numString
}
// Pretty data to JSON string.

View File

@@ -26,6 +26,10 @@ func TestComma(t *testing.T) {
assert.Equal("12,345.6789", Comma(+12345.6789, ""))
assert.Equal("12,345,678.9", Comma(12345678.9, ""))
assert.Equal("123,456,789,000", Comma(123456789000, ""))
assert.Equal("-999", Comma(-999, ""))
assert.Equal("-1,000", Comma(-1000, ""))
assert.Equal("-1,234,567", Comma(-1234567, ""))
}
func TestPretty(t *testing.T) {

View File

@@ -6,6 +6,7 @@ package function
import (
"reflect"
"sync"
"time"
)
@@ -75,6 +76,7 @@ func Delay(delay time.Duration, fn interface{}, args ...interface{}) {
}
// Debounced creates a debounced function that delays invoking fn until after wait duration have elapsed since the last time the debounced function was invoked.
// Deprecated: Use Debounce function instead.
func Debounced(fn func(), duration time.Duration) func() {
// Catch programming error while constructing the closure
mustBeFunction(fn)
@@ -94,6 +96,74 @@ func Debounced(fn func(), duration time.Duration) func() {
return func() { timer.Reset(duration) }
}
// Debounce creates a debounced version of the provided function.
func Debounce(fn func(), delay time.Duration) (debouncedFn func(), cancelFn func()) {
var (
timer *time.Timer
mu sync.Mutex
)
debouncedFn = func() {
mu.Lock()
defer mu.Unlock()
if timer != nil {
timer.Stop()
}
timer = time.AfterFunc(delay, func() {
fn()
})
}
cancelFn = func() {
mu.Lock()
defer mu.Unlock()
if timer != nil {
timer.Stop()
}
}
return debouncedFn, cancelFn
}
// Throttle creates a throttled version of the provided function.
// The returned function guarantees that it will only be invoked at most once per interval.
func Throttle(fn func(), interval time.Duration) func() {
var (
timer *time.Timer
lastRun time.Time
mu sync.Mutex
)
return func() {
mu.Lock()
defer mu.Unlock()
now := time.Now()
if now.Sub(lastRun) >= interval {
fn()
lastRun = now
if timer != nil {
timer.Stop()
timer = nil
}
} else if timer == nil {
delay := interval - now.Sub(lastRun)
timer = time.AfterFunc(delay, func() {
mu.Lock()
defer mu.Unlock()
fn()
lastRun = time.Now()
timer = nil
})
}
}
}
// Schedule invoke function every duration time, util close the returned bool chan
func Schedule(d time.Duration, fn interface{}, args ...interface{}) chan bool {
// Catch programming error while constructing the closure

View File

@@ -43,7 +43,7 @@ func TestBefore(t *testing.T) {
var res []int64
type cb func(args ...interface{}) []reflect.Value
appendStr := func(i int, s string, fn cb) {
appendStr := func(i int, _ string, fn cb) {
v := fn(i)
res = append(res, v[0].Int())
}
@@ -148,3 +148,145 @@ func TestPipeline(t *testing.T) {
assert.Equal(36, f(2))
}
func TestDebounce(t *testing.T) {
assert := internal.NewAssert(t, "TestDebounce")
t.Run("Single call", func(t *testing.T) {
callCount := 0
debouncedFn, _ := Debounce(func() {
callCount++
}, 500*time.Millisecond)
debouncedFn()
time.Sleep(1 * time.Second)
assert.Equal(1, callCount)
})
t.Run("Multiple calls within debounce interval", func(t *testing.T) {
callCount := 0
debouncedFn, _ := Debounce(func() {
callCount++
}, 1*time.Second)
for i := 0; i < 5; i++ {
go func(index int) {
time.Sleep(time.Duration(index) * 200 * time.Millisecond)
debouncedFn()
}(i)
}
time.Sleep(2 * time.Second)
assert.Equal(1, callCount)
})
t.Run("Immediate consecutive calls", func(t *testing.T) {
callCount := 0
debouncedFn, _ := Debounce(func() {
callCount++
}, 500*time.Millisecond)
for i := 0; i < 10; i++ {
debouncedFn()
time.Sleep(50 * time.Millisecond)
}
time.Sleep(1 * time.Second)
assert.Equal(1, callCount)
})
t.Run("Cancel calls", func(t *testing.T) {
callCount := 0
debouncedFn, cancelFn := Debounce(func() {
callCount++
}, 500*time.Millisecond)
debouncedFn()
cancelFn()
time.Sleep(1 * time.Second)
assert.Equal(0, callCount)
})
}
func TestThrottle(t *testing.T) {
assert := internal.NewAssert(t, "TestThrottle")
t.Run("Single call", func(t *testing.T) {
callCount := 0
throttledFn := Throttle(func() {
callCount++
}, 1*time.Second)
throttledFn()
time.Sleep(100 * time.Millisecond)
assert.Equal(1, callCount)
})
t.Run("Multiple calls within throttle interval", func(t *testing.T) {
callCount := 0
throttledFn := Throttle(func() {
callCount++
}, 1*time.Second)
for i := 0; i < 5; i++ {
throttledFn()
}
time.Sleep(1 * time.Second)
assert.Equal(1, callCount)
})
t.Run("Mutiple calls space out throttle interval", func(t *testing.T) {
callCount := 0
throttledFn := Throttle(func() {
callCount++
}, 500*time.Millisecond)
throttledFn()
time.Sleep(600 * time.Millisecond)
throttledFn()
time.Sleep(600 * time.Millisecond)
throttledFn()
time.Sleep(1 * time.Second)
assert.Equal(3, callCount)
})
t.Run("Call function near the end of the interval", func(t *testing.T) {
callCount := 0
throttledFn := Throttle(func() {
callCount++
}, 1*time.Second)
throttledFn()
time.Sleep(900 * time.Millisecond)
throttledFn()
time.Sleep(200 * time.Millisecond)
assert.Equal(2, callCount)
})
}

View File

@@ -17,7 +17,7 @@ import (
)
const (
MaximumCapacity = math.MaxInt>>1 + 1
MaximumCapacity = math.MaxInt32>>1 + 1
Numeral = "0123456789"
LowwerLetters = "abcdefghijklmnopqrstuvwxyz"
UpperLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
@@ -31,6 +31,25 @@ func init() {
rand.Seed(time.Now().UnixNano())
}
// RandBool generates a random boolean value (true or false).
func RandBool() bool {
return rand.Intn(2) == 1
}
// RandBoolSlice generates a random boolean slice of specified length.
func RandBoolSlice(length int) []bool {
if length <= 0 {
return []bool{}
}
result := make([]bool, length)
for i := range result {
result[i] = RandBool()
}
return result
}
// RandInt generate random int between [min, max).
func RandInt(min, max int) int {
if min == max {
@@ -44,6 +63,45 @@ func RandInt(min, max int) int {
return rand.Intn(max-min) + min
}
// RandIntSlice generates a slice of random integers.
// The generated integers are between min and max (exclusive).
func RandIntSlice(length, min, max int) []int {
if length <= 0 || min > max {
return []int{}
}
result := make([]int, length)
for i := range result {
result[i] = RandInt(min, max)
}
return result
}
// RandUniqueIntSlice generate a slice of random int of length n that do not repeat.
func RandUniqueIntSlice(n, min, max int) []int {
if min > max {
return []int{}
}
if n > max-min {
n = max - min
}
nums := make([]int, n)
used := make(map[int]struct{}, n)
for i := 0; i < n; {
r := RandInt(min, max)
if _, use := used[r]; use {
continue
}
used[r] = struct{}{}
nums[i] = r
i++
}
return nums
}
// RandFloat generate random float64 number between [min, max) with specific precision.
func RandFloat(min, max float64, precision int) float64 {
if min == max {
@@ -59,6 +117,23 @@ func RandFloat(min, max float64, precision int) float64 {
return mathutil.RoundToFloat(n, precision)
}
// RandFloats generate a slice of random float64 numbers of length n that do not repeat.
func RandFloats(n int, min, max float64, precision int) []float64 {
nums := make([]float64, n)
used := make(map[float64]struct{}, n)
for i := 0; i < n; {
r := RandFloat(min, max, precision)
if _, use := used[r]; use {
continue
}
used[r] = struct{}{}
nums[i] = r
i++
}
return nums
}
// RandBytes generate random byte slice.
// Play: https://go.dev/play/p/EkiLESeXf8d
func RandBytes(length int) []byte {
@@ -79,6 +154,23 @@ func RandString(length int) string {
return random(Letters, length)
}
// RandString generate a slice of random string of length strLen based on charset.
// chartset should be one of the following: random.Numeral, random.LowwerLetters, random.UpperLetters
// random.Letters, random.SymbolChars, random.AllChars. or a combination of them.
func RandStringSlice(charset string, sliceLen, strLen int) []string {
if sliceLen <= 0 || strLen <= 0 {
return []string{}
}
result := make([]string, sliceLen)
for i := range result {
result[i] = random(charset, strLen)
}
return result
}
// RandUpper generate a random upper case string of specified length.
func RandUpper(length int) string {
return random(UpperLetters, length)
@@ -176,160 +268,3 @@ func UUIdV4() (string, error) {
return fmt.Sprintf("%x-%x-%x-%x-%x", uuid[0:4], uuid[4:6], uuid[6:8], uuid[8:10], uuid[10:]), nil
}
// RandUniqueIntSlice generate a slice of random int of length n that do not repeat.
func RandUniqueIntSlice(n, min, max int) []int {
if min > max {
return []int{}
}
if n > max-min {
n = max - min
}
nums := make([]int, n)
used := make(map[int]struct{}, n)
for i := 0; i < n; {
r := RandInt(min, max)
if _, use := used[r]; use {
continue
}
used[r] = struct{}{}
nums[i] = r
i++
}
return nums
}
// RandFloats generate a slice of random float64 numbers of length n that do not repeat.
func RandFloats(n int, min, max float64, precision int) []float64 {
nums := make([]float64, n)
used := make(map[float64]struct{}, n)
for i := 0; i < n; {
r := RandFloat(min, max, precision)
if _, use := used[r]; use {
continue
}
used[r] = struct{}{}
nums[i] = r
i++
}
return nums
}
// const (
// NUMERAL = "0123456789"
// LOWER_LETTERS = "abcdefghijklmnopqrstuvwxyz"
// UPPER_LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
// LETTERS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
// )
// var rn = rand.NewSource(time.Now().UnixNano())
// func init() {
// rand.Seed(time.Now().UnixNano())
// }
// // RandInt generate random int between min and max, maybe min, not be max
// func RandInt(min, max int) int {
// if min == max {
// return min
// }
// if max < min {
// min, max = max, min
// }
// return rand.Intn(max-min) + min
// }
// // RandBytes generate random byte slice
// func RandBytes(length int) []byte {
// if length < 1 {
// return []byte{}
// }
// b := make([]byte, length)
// if _, err := io.ReadFull(crand.Reader, b); err != nil {
// return nil
// }
// return b
// }
// // RandString generate random string
// func RandString(length int) string {
// return random(LETTERS, length)
// }
// // RandUpper generate a random upper case string
// func RandUpper(length int) string {
// return random(UPPER_LETTERS, length)
// }
// // RandLower generate a random lower case string
// func RandLower(length int) string {
// return random(LOWER_LETTERS, length)
// }
// // RandNumeral generate a random numeral string
// func RandNumeral(length int) string {
// return random(NUMERAL, length)
// }
// // RandNumeralOrLetter generate a random numeral or letter string
// func RandNumeralOrLetter(length int) string {
// return random(NUMERAL+LETTERS, length)
// }
// // random generate a random string based on given string range
// func random(s string, length int) string {
// b := make([]byte, length)
// // fix: https://github.com/duke-git/lancet/issues/75
// // r := rand.New(rand.NewSource(time.Now().UnixNano()))
// for i := range b {
// b[i] = s[rand.Int63()%int64(len(s))]
// }
// return string(b)
// }
// // UUIdV4 generate a random UUID of version 4 according to RFC 4122
// func UUIdV4() (string, error) {
// uuid := make([]byte, 16)
// n, err := io.ReadFull(crand.Reader, uuid)
// if n != len(uuid) || err != nil {
// return "", err
// }
// uuid[8] = uuid[8]&^0xc0 | 0x80
// uuid[6] = uuid[6]&^0xf0 | 0x40
// return fmt.Sprintf("%x-%x-%x-%x-%x", uuid[0:4], uuid[4:6], uuid[6:8], uuid[8:10], uuid[10:]), nil
// }
// // RandUniqueIntSlice generate a slice of random int of length n that do not repeat.
// func RandUniqueIntSlice(n, min, max int) []int {
// if min > max {
// return []int{}
// }
// if n > max-min {
// n = max - min
// }
// nums := make([]int, n)
// used := make(map[int]struct{}, n)
// for i := 0; i < n; {
// r := RandInt(min, max)
// if _, use := used[r]; use {
// continue
// }
// used[r] = struct{}{}
// nums[i] = r
// i++
// }
// return nums
// }

View File

@@ -6,6 +6,7 @@ import (
"testing"
"github.com/duke-git/lancet/internal"
"github.com/duke-git/lancet/validator"
)
func TestRandString(t *testing.T) {
@@ -138,3 +139,92 @@ func hasDuplicate(arr []int) bool {
}
return false
}
func TestRandBool(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestRandBool")
result := RandBool()
assert.Equal(true, result == true || result == false)
}
func TestRandBoolSlice(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestRandBoolSlice")
t.Run("empty slice", func(t *testing.T) {
bools := RandBoolSlice(-1)
assert.Equal([]bool{}, bools)
bools = RandBoolSlice(0)
assert.Equal([]bool{}, bools)
})
t.Run("random bool slice", func(t *testing.T) {
bools := RandBoolSlice(6)
assert.Equal(6, len(bools))
for _, b := range bools {
assert.Equal(true, b == true || b == false)
}
})
}
func TestRandStringSlice(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestRandStringSlice")
t.Run("empty slice", func(t *testing.T) {
strs := RandStringSlice(Letters, -1, -1)
assert.Equal([]string{}, strs)
strs = RandStringSlice(Letters, 0, 0)
assert.Equal([]string{}, strs)
strs = RandStringSlice(Letters, -1, 0)
assert.Equal([]string{}, strs)
strs = RandStringSlice(Letters, 0, -1)
assert.Equal([]string{}, strs)
strs = RandStringSlice(Letters, 1, 0)
assert.Equal([]string{}, strs)
strs = RandStringSlice(Letters, 0, 1)
assert.Equal([]string{}, strs)
})
t.Run("random string slice", func(t *testing.T) {
strs := RandStringSlice(Letters, 4, 6)
assert.Equal(4, len(strs))
for _, s := range strs {
assert.Equal(true, validator.IsAlpha(s))
assert.Equal(6, len(s))
}
})
}
func TestRandIntSlice(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestRandIntSlice")
t.Run("empty slice", func(t *testing.T) {
numbers := RandIntSlice(-1, 1, 5)
assert.Equal([]int{}, numbers)
numbers = RandIntSlice(0, 1, 5)
assert.Equal([]int{}, numbers)
numbers = RandIntSlice(3, 5, 1)
assert.Equal([]int{}, numbers)
})
t.Run("random int slice", func(t *testing.T) {
numbers := RandIntSlice(5, 1, 1)
assert.Equal([]int{1, 1, 1, 1, 1}, numbers)
numbers = RandIntSlice(5, 1, 5)
assert.Equal(5, len(numbers))
})
}

View File

@@ -8,11 +8,17 @@ import (
"errors"
"regexp"
"strings"
"time"
"unicode"
"unicode/utf8"
"unsafe"
"math/rand"
)
// used in `Shuffle` function
var rng = rand.New(rand.NewSource(int64(time.Now().UnixNano())))
// CamelCase covert string to camelCase string.
// non letters and numbers will be ignored
// eg. "Foo-#1😄$_%^&*(1bar" => "foo11Bar"
@@ -354,7 +360,6 @@ func StringToBytes(str string) (b []byte) {
}
// BytesToString converts a byte slice to string without a memory allocation.
// Play: todo
func BytesToString(bytes []byte) string {
return *(*string)(unsafe.Pointer(&bytes))
}
@@ -530,15 +535,22 @@ func RemoveWhiteSpace(str string, repalceAll bool) string {
// SubInBetween return substring between the start and end position(excluded) of source string.
func SubInBetween(str string, start string, end string) string {
if _, after, ok := strings.Cut(str, start); ok {
if before, _, ok := strings.Cut(after, end); ok {
if _, after, ok := Cut(str, start); ok {
if before, _, ok := Cut(after, end); ok {
return before
}
}
return ""
}
// Cut splits the string at the first occurrence of separator.
func Cut(str, sep string) (before, after string, found bool) {
if i := strings.Index(str, sep); i >= 0 {
return str[:i], str[i+len(sep):], true
}
return str, "", false
}
// HammingDistance calculates the Hamming distance between two strings.
// The Hamming distance is the number of positions at which the corresponding symbols are different.
// This func returns an error if the input strings are of unequal lengths.
@@ -559,3 +571,109 @@ func HammingDistance(a, b string) (int, error) {
return distance, nil
}
// Concat uses the strings.Builder to concatenate the input strings.
// - `length` is the expected length of the concatenated string.
// - if you are unsure about the length of the string to be concatenated, please pass 0 or a negative number.
func Concat(length int, str ...string) string {
if len(str) == 0 {
return ""
}
sb := strings.Builder{}
if length <= 0 {
sb.Grow(len(str[0]) * len(str))
} else {
sb.Grow(length)
}
for _, s := range str {
sb.WriteString(s)
}
return sb.String()
}
// Ellipsis truncates a string to a specified length and appends an ellipsis.
func Ellipsis(str string, length int) string {
str = strings.TrimSpace(str)
if length <= 0 {
return ""
}
runes := []rune(str)
if len(runes) <= length {
return str
}
return string(runes[:length]) + "..."
}
// Shuffle the order of characters of given string.
func Shuffle(str string) string {
runes := []rune(str)
for i := len(runes) - 1; i > 0; i-- {
j := rng.Intn(i + 1)
runes[i], runes[j] = runes[j], runes[i]
}
return string(runes)
}
// Rotate rotates the string by the specified number of characters.
func Rotate(str string, shift int) string {
if shift == 0 {
return str
}
runes := []rune(str)
length := len(runes)
if length == 0 {
return str
}
shift = shift % length
if shift < 0 {
shift = length + shift
}
var sb strings.Builder
sb.Grow(length)
sb.WriteString(string(runes[length-shift:]))
sb.WriteString(string(runes[:length-shift]))
return sb.String()
}
// TemplateReplace replaces the placeholders in the template string with the corresponding values in the data map.
// The placeholders are enclosed in curly braces, e.g. {key}.
// for example, the template string is "Hello, {name}!", and the data map is {"name": "world"},
// the result will be "Hello, world!".
func TemplateReplace(template string, data map[string]string) string {
re := regexp.MustCompile(`\{(\w+)\}`)
result := re.ReplaceAllStringFunc(template, func(s string) string {
key := strings.Trim(s, "{}")
if val, ok := data[key]; ok {
return val
}
return s
})
result = strings.ReplaceAll(result, "{{", "{")
result = strings.ReplaceAll(result, "}}", "}")
return result
}
// RegexMatchAllGroups Matches all subgroups in a string using a regular expression and returns the result.
func RegexMatchAllGroups(pattern, str string) [][]string {
re := regexp.MustCompile(pattern)
matches := re.FindAllStringSubmatch(str, -1)
return matches
}

View File

@@ -505,3 +505,240 @@ func TestSubInBetween(t *testing.T) {
assert.Equal("", SubInBetween(str, "a", ""))
assert.Equal("", SubInBetween(str, "a", "f"))
}
func TestConcat(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestConcat")
assert.Equal("", Concat(0))
assert.Equal("a", Concat(1, "a"))
assert.Equal("ab", Concat(2, "a", "b"))
assert.Equal("abc", Concat(3, "a", "b", "c"))
assert.Equal("abc", Concat(3, "a", "", "b", "c", ""))
assert.Equal("你好,世界!", Concat(0, "你好", "", "", "世界!", ""))
assert.Equal("Hello World!", Concat(0, "Hello", " Wo", "r", "ld!", ""))
}
func TestEllipsis(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestEllipsis")
tests := []struct {
input string
length int
expected string
}{
{"", 0, ""},
{"hello world", 0, ""},
{"hello world", -1, ""},
{"hello world", 5, "hello..."},
{"hello world", 11, "hello world"},
{"你好,世界!", 2, "你好..."},
{"😀😃😄😁😆", 3, "😀😃😄..."},
{"This is a test.", 10, "This is a ..."},
}
for _, tt := range tests {
assert.Equal(tt.expected, Ellipsis(tt.input, tt.length))
}
}
func TestShuffle(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestShuffle")
assert.Equal("", Shuffle(""))
assert.Equal("a", Shuffle("a"))
str := "hello"
shuffledStr := Shuffle(str)
assert.Equal(5, len(shuffledStr))
}
func TestRotate(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestRotate")
tests := []struct {
input string
shift int
expected string
}{
{"", 1, ""},
{"a", 0, "a"},
{"a", 1, "a"},
{"a", -1, "a"},
{"Hello", -2, "lloHe"},
{"Hello", 1, "oHell"},
{"Hello, world!", 3, "ld!Hello, wor"},
}
for _, tt := range tests {
assert.Equal(tt.expected, Rotate(tt.input, tt.shift))
}
}
func TestTemplateReplace(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestTemplateReplace")
t.Run("basic", func(t *testing.T) {
template := `Hello, my name is {name}, I'm {age} years old.`
data := map[string]string{
"name": "Bob",
"age": "20",
}
expected := `Hello, my name is Bob, I'm 20 years old.`
result := TemplateReplace(template, data)
assert.Equal(expected, result)
})
t.Run("not found", func(t *testing.T) {
template := `Hello, my name is {name}, I'm {age} years old.`
data := map[string]string{
"name": "Bob",
}
expected := `Hello, my name is Bob, I'm {age} years old.`
result := TemplateReplace(template, data)
assert.Equal(expected, result)
})
t.Run("brackets", func(t *testing.T) {
template := `Hello, my name is {name}, I'm {{age}} years old.`
data := map[string]string{
"name": "Bob",
"age": "20",
}
expected := `Hello, my name is Bob, I'm {20} years old.`
result := TemplateReplace(template, data)
assert.Equal(expected, result)
})
}
func TestRegexMatchAllGroups(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestRegexMatchAllGroups")
tests := []struct {
pattern string
str string
expected [][]string
}{
{
pattern: `(\w+\.+\w+)@(\w+)\.(\w+)`,
str: "Emails: john.doe@example.com and jane.doe@example.com",
expected: [][]string{{"john.doe@example.com", "john.doe", "example", "com"}, {"jane.doe@example.com", "jane.doe", "example", "com"}},
},
{
pattern: `(\d+)`,
str: "No numbers here!",
expected: nil,
},
{
pattern: `(\d{3})-(\d{2})-(\d{4})`,
str: "My number is 123-45-6789",
expected: [][]string{{"123-45-6789", "123", "45", "6789"}},
},
{
pattern: `(\w+)\s(\d+)`,
str: "Item A 123, Item B 456",
expected: [][]string{{"A 123", "A", "123"}, {"B 456", "B", "456"}},
},
{
pattern: `(\d{2})-(\d{2})-(\d{4})`,
str: "Dates: 01-01-2020, 12-31-1999",
expected: [][]string{{"01-01-2020", "01", "01", "2020"}, {"12-31-1999", "12", "31", "1999"}},
},
}
for _, tt := range tests {
result := RegexMatchAllGroups(tt.pattern, tt.str)
assert.Equal(tt.expected, result)
}
}
func TestCut(t *testing.T) {
t.Parallel()
assert := internal.NewAssert(t, "TestCut")
tests := []struct {
name string
s string
sep string
before string
after string
found bool
}{
{
name: "test with separator",
s: "hello-world",
sep: "-",
before: "hello",
after: "world",
found: true,
},
{
name: "test without separator",
s: "helloworld",
sep: "-",
before: "helloworld",
after: "",
found: false,
},
{
name: "test empty string",
s: "",
sep: "-",
before: "",
after: "",
found: false,
},
{
name: "test separator at the beginning",
s: "-hello",
sep: "-",
before: "",
after: "hello",
found: true,
},
{
name: "test separator at the end",
s: "hello-",
sep: "-",
before: "hello",
after: "",
found: true,
},
{
name: "test multiple separators",
s: "a-b-c-d",
sep: "-",
before: "a",
after: "b-c-d",
found: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
before, after, found := Cut(tt.s, tt.sep)
assert.Equal(tt.before, before)
assert.Equal(tt.after, after)
assert.Equal(tt.found, found)
})
}
}

View File

@@ -1,4 +1,5 @@
//go:build windows
// +build windows
package system