ant-design-vue/components/_util/requestAnimationTimeout.js

import getRequestAnimationFrame, {
  cancelRequestAnimationFrame as caf,
} from './getRequestAnimationFrame';
const raf = getRequestAnimationFrame();

export const cancelAnimationTimeout = frame => caf(frame.id);

export const requestAnimationTimeout = (callback, delay = 0) => {
  const start = Date.now();
  function timeout() {
    if (Date.now() - start >= delay) {
      callback.call();
    } else {
      frame.id = raf(timeout);
    }
  }

  const frame = {
    id: raf(timeout),
  };

  return frame;
};