alternate()

Toggles the playback direction while adjusting the currentTime position to reflect the new time progress.

Only the iterationTime is actually played in reverse since the currentTime always starts at 0 and ends at duration.

Returns

The timer itself

Can be chained with other timer methods.

alternate() code example

import { createTimer, utils } from 'animejs';

const [ $alternateButton ] = utils.$('.button');
const [ $iterationTime ] = utils.$('.iteration-time');

const timer = createTimer({
  duration: 10000,
  loop: true,
  onUpdate: self => {
    $iterationTime.innerHTML = self.iterationCurrentTime;
  }
});

const alternateTimer = () => timer.alternate();

$alternateButton.addEventListener('click', alternateTimer);

<div class="large centered row">
  <div class="half col">
    <pre class="large log row">
      <span class="label">iteration time</span>
      <span class="iteration-time value lcd">0</span>
    </pre>
  </div>
</div>
<div class="medium row">
  <fieldset class="controls">
    <button class="button">Alternate</button>
  </fieldset>
</div>

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