diff --git a/common/clear.go b/common/clear.go
new file mode 100644
index 0000000..9768e9c
--- /dev/null
+++ b/common/clear.go
@@ -0,0 +1,11 @@
+//go:build go1.21
+
+package common
+
+func ClearArray[T ~[]E, E any](t T) {
+	clear(t)
+}
+
+func ClearMap[T ~map[K]V, K comparable, V any](t T) {
+	clear(t)
+}
diff --git a/common/clear_compat.go b/common/clear_compat.go
new file mode 100644
index 0000000..4e7e9cd
--- /dev/null
+++ b/common/clear_compat.go
@@ -0,0 +1,16 @@
+//go:build !go1.21
+
+package common
+
+func ClearArray[T ~[]E, E any](t T) {
+	var defaultValue E
+	for i := range t {
+		t[i] = defaultValue
+	}
+}
+
+func ClearMap[T ~map[K]V, K comparable, V any](t T) {
+	for k := range t {
+		delete(t, k)
+	}
+}