JSFiddle - React, Tailwind, and code Playground

by ruanyf

JavaScript

  var wait = function(dtd){

    var tasks = function(){

      alert("执行完毕!");

      dtd.resolve(); // 改变Deferred对象的执行状态

    };

    setTimeout(tasks,5000);

    return dtd.promise();

  };

  $.Deferred(wait)

  .done(function(){ alert("哈哈,成功了!"); })

  .fail(function(){ alert("出错啦!"); });