feat: Minor changes

2023-06-17 23:23:41 +02:00
parent b986096aa0
commit c086579b57
3 changed files with 22 additions and 18 deletions
--- a/lib/src/helpers.dart
+++ b/lib/src/helpers.dart
@@ -86,9 +86,13 @@ extension BeforeAfterListDiff<T> on List<T> {

 extension AppendToListOrCreateExtension<K, V> on Map<K, List<V>> {
  /// Create or append [value] to the list identified with key [key].
-  void appendOrCreate(K key, V value) {
+  void appendOrCreate(K key, V value, {bool checkExistence = false}) {
    if (containsKey(key)) {
-      this[key]!.add(value);
+      if (!checkExistence) {
+        this[key]!.add(value);
+      } if (!this[key]!.contains(value)) {
+        this[key]!.add(value);
+      }
    } else {
      this[key] = [value];
    }