Polymer 3.0 中的去抖器

Debouncer in Polymer 3.0

如何在 Polymer 3 中正确编写去抖器?

根据documentation

import {microTask} from '@polymer/polymer/lib/utils/async.js';
import {Debouncer} from '@polymer/polymer/lib/utils/debounce.js';
// ...

_debounceWork() {
  this._debounceJob = Debouncer.debounce(this._debounceJob,
      microTask, () => this._doWork());
}

这很好,但我需要配置一些时间。例如,这就是我在 Polymer 1

中的做法
  this.debounce("scroll",function() {
      this.$$("#scrollThreshold").clearTriggers();
  }.bind(this), 400);

和聚合物 2

this._debouncer = Polymer.Debouncer.debounce(
    this._debouncer, // initially undefined
    Polymer.Async.timeOut.after(400),
    () => {
       // some code
    }
);

但我不知道如何在 Polymer 3 中设置 400ms 去抖

async模块有timeout功能但需要导入

import {timeOut} from '@polymer/polymer/lib/utils/async.js';

this._debouncer = Debouncer.debounce(
    this._debouncer, // initially undefined
    timeOut.after(400),
    () => {
       // some code
    }
);