feat: add ToMapToSlice function

convertor/convertor.go

@@ -189,7 +189,7 @@ func ToPointer[T any](value T) *T {
 	return &value
 }
 
-// ToMap convert a slice or an array of structs to a map
+// ToMap convert a slice or an array of structs to a map based on iteratee function
 func ToMap[T any, K comparable, V any](array []T, iteratee func(T) (K, V)) map[K]V {
 	res := make(map[K]V, len(array))
 	for _, item := range array {
@@ -230,6 +230,17 @@ func StructToMap(value any) (map[string]any, error) {
 	return res, nil
 }
 
+// MapToSlice convert a map to a slice based on iteratee function
+func MapToSlice[T any, K comparable, V any](aMap map[K]V, iteratee func(K, V) T) []T {
+	res := make([]T, 0, len(aMap))
+
+	for k, v := range aMap {
+		res = append(res, iteratee(k, v))
+	}
+
+	return res
+}
+
 // ColorHexToRGB convert hex color to rgb color
 func ColorHexToRGB(colorHex string) (red, green, blue int) {
 	colorHex = strings.TrimPrefix(colorHex, "#")

convertor/convertor_test.go

@@ -2,6 +2,7 @@ package convertor
 
 import (
 	"fmt"
+	"strconv"
 	"testing"
 
 	"github.com/duke-git/lancet/v2/internal"
@@ -160,7 +161,7 @@ func TestToJson(t *testing.T) {
 }
 
 func TestToMap(t *testing.T) {
-	assert := internal.NewAssert(t, "TestStructToMap")
+	assert := internal.NewAssert(t, "TestToMap")
 
 	type Message struct {
 		name string
@@ -190,10 +191,22 @@ func TestStructToMap(t *testing.T) {
 		100,
 	}
 	pm, _ := StructToMap(p)
-	var expected = map[string]any{"name": "test"}
+
+	expected := map[string]any{"name": "test"}
 	assert.Equal(expected, pm)
 }
 
+func TestMapToSlice(t *testing.T) {
+	assert := internal.NewAssert(t, "TestMapToSlice")
+
+	aMap := map[string]int{"a": 1, "b": 2, "c": 3}
+	result := MapToSlice(aMap, func(key string, value int) string {
+		return key + ":" + strconv.Itoa(value)
+	})
+
+	assert.Equal([]string{"a:1", "b:2", "c:3"}, result)
+}
+
 func TestColorHexToRGB(t *testing.T) {
 	colorHex := "#003366"
 	r, g, b := ColorHexToRGB(colorHex)