Initial commit

lib/common/function.dart

@@ -0,0 +1,26 @@
+import 'dart:async';
+
+class Debouncer {
+  final Duration delay;
+  Timer? _timer;
+
+  Debouncer({required this.delay});
+
+  void call(Function action, List<dynamic> positionalArguments, [Map<Symbol, dynamic>? namedArguments]) {
+    _timer?.cancel();
+    _timer = Timer(delay, () => Function.apply(action, positionalArguments, namedArguments));
+  }
+}
+
+Function debounce<F extends Function>(F func,{int milliseconds = 600}) {
+  Timer? timer;
+
+  return ([List<dynamic>? args, Map<Symbol, dynamic>? namedArgs]) {
+    if (timer != null) {
+      timer!.cancel();
+    }
+    timer = Timer(Duration(milliseconds: milliseconds), () {
+      Function.apply(func, args ?? [], namedArgs);
+    });
+  };
+}