alternate

定义当 loop 设置为true或大于1时，计时器的方向是否在每次迭代时交替。

接受

布尔

默认

false

要全局更改默认值，请更新 engine.defaults 对象。

import { engine } from 'animejs';
engine.defaults.alternate = true;

备用代码示例

import { animate } from 'animejs';

const [ $loops ] = utils.$('.loops');
const [ $time ] = utils.$('.time');

let loops = 0;

createTimer({
  loop: true,
  duration: 1000,
  alternate: true,
  onLoop: () => $loops.innerHTML = ++loops,
  onUpdate: self => $time.innerHTML = self.iterationCurrentTime
});

<div class="large centered row">
  <div class="col">
    <pre class="large log row">
      <span class="label">loops count</span>
      <span class="loops value">0</span>
    </pre>
  </div>
  <div class="col">
    <pre class="large log row">
      <span class="label">iteration time</span>
      <span class="time value lcd">0</span>
    </pre>
  </div>
</div>

loopDelay
reversed