Go 1.18 is released today 🎉 Let's try some yammy Generics

package main import ( "fmt" "github.com/samber/lo" ) func main() { nums := []int{1, 2, 3} lo.ForEach(nums, func(t int, i int) { fmt.Println(t) }) doubles := lo.Map(nums, func(num int, _ int) int { return num * 2 }) fmt.Println("doubles:", doubles) odds := lo.Filter(nums, func(v int, _ int) bool { return v%2 != 0 }) fmt.Println("odds:", odds) lo.Shuffle(nums) fmt.Println("randomed:", nums) reversed := lo.Reverse(nums) fmt.Println("reversed:", reversed) if idx := lo.IndexOf(nums, 3); idx != -1 { fmt.Println("Found 3") } else { fmt.Println("Not found 3") } ele, found := lo.Find(nums, func(v int) bool { return v == 2 }) fmt.Println("Found:", found, "Element:", ele) arr := lo.Range(5) fmt.Println("array:", arr) // get map.keys m := map[string]string{ "name": "John", "score": "A", } fmt.Println(lo.Keys(m)) fmt.Println(lo.Values(m)) for _, item := range lo.Entries(m) { fmt.Println("Key:", item.Key, "=>", "Value:", item.Value) } } 

$ go run main.go 1 2 3 doubles: [2 4 6] odds: [1 3] randomed: [1 3 2] reversed: [2 3 1] Found 3 Found: true Element: 2 array: [0 1 2 3 4] [name score] [John A] Key: name => Value: John Key: score => Value: A