/* import 'package:flutter/foundation.dart';
import 'dart:async';

class Debouncer {

  final int milliseconds;
  VoidCallback action;
  Timer _timer;

  Debouncer({ milliseconds });
/*  */
  run(VoidCallback action) {
    if (_timer != null) {
      _timer.cancel();
    }
    _timer = Timer(Duration(milliseconds: milliseconds), action);
  }
}
 */
import 'dart:async';

/// 函数防抖
///
/// [func]: 要执行的方法
/// [delay]: 要迟延的时长
Function(T) debouncer<T>(Function(T text)? func, {int? delayTime}) {
  Duration delay = Duration(milliseconds: delayTime ?? 1500);

  Timer? timer;
  Function(T) target = (T value) {
    if (timer?.isActive ?? false) {
      timer?.cancel();
    }
    timer = Timer(delay, () {
      if (func != null) func.call(value);
    });
  };
  return target;
}