import { createDraggable, utils } from 'animejs';

const [ $refreshButton ] = utils.$('.refresh');

const draggable = createDraggable('.square', {
  snap: () => utils.random(0, 32, 0),
  dragSpeed: () => utils.random(.5, 1.5, 1),
});

const refreshDraggable = () => draggable.refresh();

$refreshButton.addEventListener('click', refreshDraggable);

<div class="large centered row">
  <div class="square draggable"></div>
</div>
<div class="large row">
  <fieldset class="controls">
    <button class="button refresh">Refresh</button>
  </fieldset>
</div>