微信小程序实现批量倒计时

//批量倒计时
function grouponcountdown(that, end_time, param, list) {
  let timer;
  try {
    // 当页面隐藏或卸载时,停止倒计时
    if (that.data.cleanTime) {
      clearTimeout(timer)
      console.log('停止')
      return false;
    };
    var EndTime = new Date(end_time).getTime();
    var NowTime = new Date().getTime();

    var total_micro_second = EndTime - NowTime;
    var groupons = that.data[list];
    let time = dateformats(total_micro_second);

    groupons[param].endtime = '倒计时:' + time;

    if (total_micro_second <= 0) {
      groupons[param].endtime = "直播已开始"
    }
    that.setData({
      [list]: groupons
    })
    console.log('执行')
    if (total_micro_second > 0) {
      timer = setTimeout(async() => {
        await grouponcountdown(that, end_time, param, list);
         clearTimeout(timer)
      }, 1000)
    }
  } catch (err) {
    // 当列表中有部分倒计时执行完毕时保证其他倒计时正常执行
    timer = setTimeout(async() => {
      await  grouponcountdown(that, end_time, param, list);
       clearTimeout(timer)
    }, 1000)
  }

}

// 时间格式化输出，每1s都会调用一次
function dateformats(micro_second) {
  // 总秒数
  var second = Math.floor(micro_second / 1000);
  // 小时
  var hr = Math.floor(second / 3600);
  var hrStr = hr.toString();
  if (hrStr.length == 1) hrStr = '0' + hrStr;

  // 分钟
  var min = Math.floor(second / 60 % 60);
  var minStr = min.toString();
  if (minStr.length == 1) minStr = '0' + minStr;

  // 秒
  var sec = Math.floor(second % 60);
  var secStr = sec.toString();
  if (secStr.length == 1) secStr = '0' + secStr;
  return hrStr + ":" + minStr + ":" + secStr;
}

应用

//列表获取到数据进行遍历
      for (var i = 0; i < val.length; i++) {
        var end_time = val[i].end_time.replace(/-/g, '/')
        grouponcountdown(that, end_time, i, 'groupon')
      }