antd-fx67ll-test/es/grid/hooks/useBreakpoint.js

这是一个测试着玩的私服antd项目，完全照抄v4.16.6的antd源码，请勿使用，仅做发布测试（因每次发布必须要升版本，如发现版本出入请忽略，与官方无关）

import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import { useEffect, useState } from 'react';
import ResponsiveObserve from '../../_util/responsiveObserve';

function useBreakpoint() {
  var _useState = useState({}),
      _useState2 = _slicedToArray(_useState, 2),
      screens = _useState2[0],
      setScreens = _useState2[1];

  useEffect(function () {
    var token = ResponsiveObserve.subscribe(function (supportScreens) {
      setScreens(supportScreens);
    });
    return function () {
      return ResponsiveObserve.unsubscribe(token);
    };
  }, []);
  return screens;
}

export default useBreakpoint;