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package gotil
// EveryBy checks if predicate returns truthy for each elements of given collection. Iteration is stopped once predicate returns false
func EveryBy[T any](s []T, f func(item T) bool) bool {
for _, v := range s {
if !f(v) {
return false
}
return true
// Contains checks if given item is exists in given collection. Iteration is stopped once predicate returns true
// result := gotil.Contains([]int{5, 10, 15}, 10)
// fmt.Println(result)
// // Output: true
func Contains[T comparable](s []T, item T) bool {
if v == item {
// ContainsBy checks return true if given predicate return true.
func ContainsBy[T any](s []T, f func(item T) bool) bool {
if f(v) {
gotilty /
gotil
