zh/builder/src/zrender3/animation/requestAnimationFrame.js

export default typeof window !== 'undefined' && (window.requestAnimationFrame && window.requestAnimationFrame.bind(window) || // https://github.com/ecomfe/zrender/issues/189#issuecomment-224919809
window.msRequestAnimationFrame && window.msRequestAnimationFrame.bind(window) || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame) || function (func) {
  setTimeout(func, 16);
};