diff --git a/types/views/views.go b/types/views/views.go
index f0c093488..0032bd462 100644
--- a/types/views/views.go
+++ b/types/views/views.go
@@ -274,8 +274,8 @@ func (v Slice[T]) IndexFunc(f func(T) bool) int {
 //
 // As it runs in O(n) time, use with care.
 func (v Slice[T]) ContainsFunc(f func(T) bool) bool {
-	for i := 0; i < v.Len(); i++ {
-		if f(v.At(i)) {
+	for _, x := range v.ж {
+		if f(x) {
 			return true
 		}
 	}
@@ -286,8 +286,8 @@ func (v Slice[T]) ContainsFunc(f func(T) bool) bool {
 //
 // As it runs in O(n) time, use with care.
 func SliceContains[T comparable](v Slice[T], e T) bool {
-	for i := 0; i < v.Len(); i++ {
-		if v.At(i) == e {
+	for _, x := range v.ж {
+		if x == e {
 			return true
 		}
 	}
@@ -296,8 +296,8 @@ func SliceContains[T comparable](v Slice[T], e T) bool {
 
 // SliceContainsFunc reports whether f reports true for any element in v.
 func SliceContainsFunc[T any](v Slice[T], f func(T) bool) bool {
-	for i := 0; i < v.Len(); i++ {
-		if f(v.At(i)) {
+	for _, x := range v.ж {
+		if f(x) {
 			return true
 		}
 	}