import { createDraggable, utils } from 'animejs';

const [ $resetButton ] = utils.$('.reset');

const draggable = createDraggable('.square');

const resetDraggable = () => draggable.reset();

$resetButton.addEventListener('click', resetDraggable);

<div class="large centered row">
  <div class="square draggable"></div>
</div>
<div class="large row">
  <fieldset class="controls">
    <button class="button reset">Reset</button>
  </fieldset>
</div>