1 files changed, 11 insertions, 0 deletions
diff --git a/src/strings/example_test.go b/src/strings/example_test.go
index ab83e10de4..bdab7ae8de 100644
--- a/src/strings/example_test.go
+++ b/src/strings/example_test.go
@@ -80,6 +80,17 @@ func ExampleContainsRune() {
 	// false
 }
 
+func ExampleContainsFunc() {
+	f := func(r rune) bool {
+		return r == 'a' || r == 'e' || r == 'i' || r == 'o' || r == 'u'
+	}
+	fmt.Println(strings.ContainsFunc("hello", f))
+	fmt.Println(strings.ContainsFunc("rhythms", f))
+	// Output:
+	// true
+	// false
+}
+
 func ExampleCount() {
 	fmt.Println(strings.Count("cheese", "e"))
 	fmt.Println(strings.Count("five", "")) // before & after each rune