package xslices

func ForEach[T any](items []T, f func(T)) {
	for _, item := range items {
		f(item)
	}
}

func AsMap[T any, U comparable](items []T, f func(T) U) map[U]struct{} {
	out := make(map[U]struct{}, len(items))
	ForEach(items, func(in T) {
		out[f(in)] = struct{}{}
	})
	return out
}