Moment.js实现多个同时倒计时

bower install moment --save # bower
npm install moment --save # npm

import moment from 'moment'

//定义一个立即执行的函数
 (function () {
 var Ticts=function Ticts() {
 this.ticts = {};
 };
 Ticts.prototype.createTicts=function(id, dealline) {
 var ticts=this;
 var time=moment(dealline).diff(moment());
 var _ticts=this.ticts[id] = {
 dealine: dealline
 , id: id
 , time: time
 , interval: setInterval(function () {
 var t = null;
 var d = null;
 var h = null;
 var m = null;
 var s = null;
 //js默认时间戳为毫秒,需要转化成秒
 t = _ticts.time / 1000;
 d = Math.floor(t / (24 * 3600));
 h = Math.floor((t - 24 * 3600 * d) / 3600);
 m = Math.floor((t - 24 * 3600 * d - h * 3600) / 60);
 s = Math.floor((t - 24 * 3600 * d - h * 3600 - m * 60));
 //这里可以做一个格式化的处理,甚至做毫秒级的页面渲染,基于DOM操作,太多个倒计时一起会导致页面性能下降
 document.getElementById(id).innerHTML = d + '天' + h + '小时' + m + '分钟' + s + '秒';
 _ticts.time -= 1000;
 if (_ticts.time < 0)
 ticts.deleteTicts(id);//判断是否到期,到期后自动删除定时器
 }, 1000)
 }
 };
 Ticts.prototype.deleteTicts = function(id) {
 clearInterval(this.ticts[id].interval);//清楚定时器的方法,需要定时器的指针作为参数传入clearInterval
 delete this.ticts[id];//通过delete的方法删除对象中的属性
 };
 //新建一个ticts对象,放到window全局函数中,那么在html页面是(或者其他js文件)可以访问该对象
 window.Ticts=new Ticts();
 })();
 
 Ticts.createTicts("time1","2019-06-07 00:00:00");
 Ticts.createTicts("time2","2019-09-13 00:00:00");
 Ticts.createTicts("time3","2019-10-01 00:00:00");

<div><span>距离端午假期还有：</span><span id="time1"></span></div>
<br>
<div><span>距离中秋假期还有：</span><span id="time2"></span></div>
<br>
<div><span>距离国庆假期还有：</span><span id="time3"></span></div>