Commit fa8cd48

@@ -25,3 +25,11 @@ func Contains[T comparable](items []T, predicate Predicate[T]) bool {
 	item := Find[T](items, predicate)
 	return item != Default[T]()
 }
+
+func Map[TInput any, TOutput any](items []TInput, mapFrom func(TInput) TOutput) []TOutput {
+	results := []TOutput{}
+	for _, item := range items {
+		results = append(results, mapFrom(item))
+	}
+	return results
+}

@@ -1,6 +1,7 @@
 package x
 
 import (
+	"strconv"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -71,3 +72,13 @@ func TestContains(t *testing.T) {
 		assert.False(t, result)
 	})
 }
+
+func TestMap(t *testing.T) {
+	t.Run("maps each item", func(t *testing.T) {
+		items := []int{1, 2, 3}
+		result := Map(items, func(item int) string {
+			return strconv.Itoa(item)
+		})
+		assert.Equal(t, []string{"1", "2", "3"}, result)
+	})
+}