diff --git a/langext/array.go b/langext/array.go
index ecf0add..20520e8 100644
--- a/langext/array.go
+++ b/langext/array.go
@@ -381,3 +381,19 @@ func ArrCastToAny[T1 any](arr []T1) []any {
 	}
 	return r
 }
+
+func ArrConcat[T any](arr ...[]T) []T {
+	c := 0
+	for _, v := range arr {
+		c += len(v)
+	}
+	r := make([]T, c)
+	i := 0
+	for _, av := range arr {
+		for _, v := range av {
+			r[i] = v
+			i++
+		}
+	}
+	return r
+}