js实现网页同时进行多个倒计时功能

本文实例为大家分享了js实现网页同时进行多个倒计时的具体代码，供大家参考，具体内容如下

创建一个时间类Timer.

每个商品的倒计时生成一个实例：var time = new Timer();

 
var Alarm = function (startime, endtime, countFunc, endFunc) {
    this.time = Math.floor((endtime - startime) / 1000); //时间
    this.countFunc = countFunc; //计时函数
    this.endFunc = endFunc; //结束函数
    this.flag = 't' + Date.parse(new Date()); //
  };
Alarm.prototype.start = function () {
  var self = this;
 
  self.flag = setInterval(function () {
    if (self.time < 0) {
      clearInterval(self.flag);
      self.endFunc();
      console.log('计时结束');
    } else {
      var minute, hour, day, second;
      day = Math.floor(self.time / 60 / 60 / 24) < 10 ? '0' + Math.floor(self.time / 60 / 60 / 24) : Math.floor(self.time / 60 / 60 / 24);
      hour = Math.floor(self.time / 60 / 60 % 24) < 10 ? '0' + Math.floor(self.time / 60 / 60 % 24) : Math.floor(self.time / 60 / 60 % 24);
      minute = Math.floor(self.time / 60 % 60) < 10 ? '0' + Math.floor(self.time / 60 % 60) : Math.floor(self.time / 60 % 60);
      second = Math.floor(self.time % 60) < 10 ? '0' + Math.floor(self.time % 60) : Math.floor(self.time % 60);
      //倒计时执行函数
      self.countFunc(second, minute, hour, day);
      self.time--;
    }
  }, 1000);
}

如果调用：

var time1 = new Alarm(startime, endtime, countFunc, endFunc);
time1.start();
 
var time2 = new Alarm(startime, endtime, countFunc, endFunc);
time2.start();
...

调用示例：

var countTime = function () {
  var eles = $('.count_time'),
    len = eles.length;
  for (; len > 0; len--) {
    var ele = eles.eq(len - 1);
    (function (ele) {
      startTime = new Date(ele.attr('data-start-time')).getTime(),
   endTime = new Date(ele.attr('data-end-time')).getTime(),
   alarm = new Alarm(startTime, endTime, function (second, minute, hour, day) { //计时钟
     ele.text(hour + ':' + minute + ':' + second);
   }, function () { //倒计时结束
     ele.text('00:00:00');
     window.location.reload();
   });
      alarm.start();
    })(ele);
  }
};
countTime();

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。