setTimeout传参问题

IE8下参数接受失败的解决方案：

  var __sto = setTimeout
  window.setTimeout = function(cb, timeout, ...args){
    var args = Array.prototype.slice.call(arguments, 2)
    var _cb = function () {
      cb.apply(null, args)
    }
    __sto(_cb, timeout)
  }
//测试
  function aa (a, b, c) {
    console.log(a)
    console.log(b)
    console.log(c)
  }
  window.setTimeout(aa, 200, 1,4,5)

参考 ：https://www.jb51.net/article/40524.htm