diff --git a/README.md b/README.md
index 1f10a75..2082c48 100644
--- a/README.md
+++ b/README.md
@@ -130,13 +130,4 @@ FindIndex(users, "User1")
 FindIndex(users, "User5")
 //-1
 
-```
-### Concat
-
-```
-users1 := []User{{Id: 10, Name: "John"}, {Id: 11, Name: "Doe"}, {Id: 12, Name: "Sabrina"}}
-users2 := []User{{Id: 10, Name: "John"}, {Id: 11, Name: "Doe"}, {Id: 12, Name: "Sabrina"}}
-Concat(users1, users2)
-//{{Id: 10, Name: "John"}, {Id: 11, Name: "Doe"}, {Id: 12, Name: "Sabrina"}, {Id: 10, Name: "John"}, {Id: 11, Name: "Doe"}, {Id: 12, Name: "Sabrina"}}
-
 ```
\ No newline at end of file
diff --git a/concat_test.go b/concat_test.go
deleted file mode 100644
index 66169d8..0000000
--- a/concat_test.go
+++ /dev/null
@@ -1,16 +0,0 @@
-package js_array_method
-
-import (
-	"testing"
-)
-
-func TestConcat(t *testing.T) {
-	users1 := []User{{Id: 10, Name: "John"}, {Id: 11, Name: "Doe"}, {Id: 12, Name: "Sabrina"}}
-	users2 := []User{{Id: 10, Name: "John"}, {Id: 11, Name: "Doe"}, {Id: 12, Name: "Sabrina"}}
-
-	users := Concat(users1, users2)
-
-	if len(users) != 6 {
-		t.Errorf("Expected 6 got %d", len(users))
-	}
-}
diff --git a/js_array_method.go b/js_array_method.go
index b047da2..45b76ff 100644
--- a/js_array_method.go
+++ b/js_array_method.go
@@ -120,7 +120,3 @@ func Reverse[T any](input []T) []T {
 
 	return output
 }
-
-func Concat[T any](slice1 []T, slice2 []T) []T {
-	return append(slice1, slice2...)
-}