diff --git a/utils/lo2/lo.go b/utils/lo2/lo.go
index 9011fe8..69e6150 100644
--- a/utils/lo2/lo.go
+++ b/utils/lo2/lo.go
@@ -19,6 +19,22 @@ func RemoveAt[T any](arr []T, index int) []T {
 	return append(arr[:index], arr[index+1:]...)
 }
 
+func RemoveAllDefault[T comparable](arr []T) []T {
+	var def T
+	return lo.Filter(arr, func(i T, idx int) bool {
+		return i != def
+	})
+}
+
+func Clear[T comparable](arr []T, item T) {
+	var def T
+	for i := 0; i < len(arr); i++ {
+		if arr[i] == item {
+			arr[i] = def
+		}
+	}
+}
+
 func ArrayClone[T any](arr []T) []T {
 	return append([]T{}, arr...)
 }
@@ -29,3 +45,12 @@ func Insert[T any](arr []T, index int, item T) []T {
 	arr[index] = item
 	return arr
 }
+
+func Deref[T any](arr []*T) []T {
+	result := make([]T, len(arr))
+	for i := 0; i < len(arr); i++ {
+		result[i] = *arr[i]
+	}
+
+	return result
+}