Use jquery to implement a small countdown function

This article mainly introduces jquery to implement countdown small application in detail. It has certain reference value. Interested friends can refer to it.

The example in this article shares with you the specific effect of jquery countdown. The code is for your reference. The specific content is as follows

html

<p id="shop_rec">
  <ul class="cf">
    <li>
      <img src="image/goods.jpg" alt="小米 Note 顶配版" />
      <p>
        <h5>小米 Note 顶配版</h5>
        <p>全网通 香槟金 移动联通<br />双4G手机 双卡双待</p>
        <em>¥2998<i>起</i></em>
        <span class="time" data-starttime="1445982375" data-endtime="1446350400"></span>
      </p>
    </li>
    <li>
      <img src="image/goods.jpg" alt="小米 Note 顶配版" />
      <p>
        <h5>小米 Note 顶配版</h5>
        <p>全网通 香槟金 移动联通<br />双4G手机 双卡双待</p>
        <em>¥2998<i>起</i></em>
        <span class="time" data-starttime="1445912375" data-endtime="1436350400"></span>
      </p>
    </li>
  </ul>
</p>

jquery

$(function(){
  var abj = $("#shop_rec"),
    timeObj = abj.find('.time');
  var starttime = timeObj.data('starttime');

  // 定时器函数
  function actionDo(){
    return setInterval(function(){
      timeObj.each(function(index, el) {
        var t = $(this),
          surplusTime = t.data('endtime') -starttime;
        if (surplusTime <= 0) {
          t.html("活动已经开始");
        } else{
          var year = surplusTime/(24*60*60*365),
            showYear = parseInt(year),
            month = (year-showYear)*12,
            showMonth = parseInt(month),
            day = (month-showMonth)*30,
            showDay = parseInt(day),
            hour = (day-showDay)*24,
            showHour = parseInt(hour),
            minute = (hour-showHour)*60,
            showMinute = parseInt(minute),
            seconds = (minute-showMinute)*60,
            showSeconds = parseInt(seconds);
          t.html("");
          if (showYear>0) {
            t.append("<span>"+showYear+"年</span>")
          };
          if (showMonth>0) {
            t.append("<span>"+showMonth+"月</span>")
          };
          if (showDay>0) {
            t.append("<span>"+showDay+"天</span>")
          };
          if (showHour>=0) {
            t.append("<span>"+showHour+"小时</span>")
          };
          if (showMinute>=0) {
            t.append("<span>"+showMinute+"分钟</span>")
          };
          if (showSeconds>=0) {
            t.append("<span>"+showSeconds+"秒</span>")
          };
        };
      });
      starttime++;
    },1000); // 设定执行或延时时间
  };
  // 执行它
  actionDo();
});

Summary

It’s not particularly good, but it’s no problem at all for small applications.

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