定时器遇到的坑

 1 // 商品倒计时用一个定时器来写
 2 //type 是不同页面
 3 var timecountdown = {
 4     Secondms_jx: 60 * 1000,
 5     minutems_jx: 1000,
 6     h: 100,
 7     timehms: false
 8 };
 9 
10 timecountdown.updateEndTime = function(type) {
11     var _that = this;
12     $(".item-djx").each(function(i, el) {
13         if(!this.num){
14            var endTime = parseInt(this.getAttribute("endTime"));
15        }else{
16            var endTime=this.num;
17        }       
18         var key = parseInt(this.getAttribute("itemid"));
19 
20 
21         if (endTime < 0) {
22             return true; //跳过此次循环
23         } else {
24             endTime = endTime - 1000;
25         }
26         this.num=endTime;
27         _that.clock_jx(key, endTime, type);
28     });
29 
30     setTimeout(function() {
31         _that.updateEndTime(type);
32         if(!_that.timehms){
33             _that.hmstime();
34         }
35     }, 1000);
36 }
37 
38 timecountdown.clock_jx = function(key, diff, skin) {
39     var _that = this;
40 
41     if (diff <= 0) {
42         $("#leftTimeJx" + key).parent().hide();
43         $("#leftTimeJx" + key).parent().parent().find(‘.jx-ing‘).show();
44         $.post(‘/yunbuy/lottery‘, ‘skin=‘ + skin + ‘&id=‘ + key, function(data) {
45             setTimeout(function() {
46                 $(‘#itemDjx‘ + key).remove();
47                 $(‘#win-list .item-db‘).eq(0).before(data.html);
48             }, 5000);
49         }, ‘json‘);
50     } else {
51         var DifferSecond = Math.floor(diff / _that.Secondms_jx);
52         diff -= DifferSecond * _that.Secondms_jx;
53         var DifferMinute = Math.floor(diff / _that.minutems_jx);
54         diff -= DifferMinute * _that.minutems_jx;
55 
56         if (DifferSecond.toString().length < 2) DifferSecond = ‘0‘ + DifferSecond;
57         if (DifferMinute.toString().length < 2) DifferMinute = ‘0‘ + DifferMinute;
58 
59         var sTime = "";
60         sTime += "<span>" + DifferSecond + "</span><b>:</b>";
61         sTime += "<span>" + DifferMinute + "</span><b>:</b>";
62         sTime += "<span class=‘timeHm‘>" + 99 + "</span>";
63         document.getElementById("leftTimeJx" + key).innerHTML = sTime; //显示倒计时信息
64     }
65 }
66 timecountdown.hmstime = function() {
67     //毫秒单独计时
68     var _that = this;
69 
70     clearInterval(_that.timehms);
71     _that.timehms = setInterval(function() {
72 
73         if (_that.h <= 0) _that.h = 100;
74         _that.h = parseInt(_that.h) - 1;
75         if (_that.h.toString().length < 1) _that.h = ‘00‘;
76         if (_that.h.toString().length == 1) _that.h = ‘0‘ + _that.h;
77         if (_that.h.toString().length > 2) _that.h = ‘99‘;
78         setTimeout(function() {
79            if ($(‘.timeHm‘).length == 0) {
80             clearInterval(_that.timehms);
81             _that.timehms=false; //此处一定要赋值，不然下次 再次开启 我用的这个值得判断 就会不准，虽然定时器清了，但是那个值一直存在，可以说是定时器id
82            };
83         }, 5000);
84 
85         $(‘.timeHm‘).html(_that.h)
86     }, 15);
87 }
88 
89 timecountdown.hmstime();