/**
 * @desc AnimationFrame简单兼容hack
 */
const animationFrame = () => {
  window.cancelAnimationFrame = (function () {
    return window.cancelAnimationFrame ||
      window.webkitCancelAnimationFrame ||
      window.mozCancelAnimationFrame ||
      window.oCancelAnimationFrame ||
      window.msCancelAnimationFrame ||
      function (id) {
        return window.clearTimeout(id);
      };
  })()
  window.requestAnimationFrame = function () {
    return (
      window.requestAnimationFrame ||
      window.webkitRequestAnimationFrame ||
      window.mozRequestAnimationFrame ||
      window.oRequestAnimationFrame ||
      window.msRequestAnimationFrame ||
      function (callback) {
        return window.setTimeout(callback, 1000 / 60);
      }
    );
  }();
}

module.exports = animationFrame