倒计时定时器使用Moment js

Countdown timer using Moment js

本文关键字：Moment js 定时器倒计时更新时间：2023-09-26

我正在为一个事件页面制作一个倒计时计时器，我使用了moment js。

这是小提琴。

我正在计算事件日期和当前日期(时间戳)之间的日期差，然后使用' duration ';方法从时刻js。但剩下的时间并没有像预期的那样到来。
预期 - 00:30:00
实际 - 5h:59m:00s

代码:

<script>
  $(document).ready(function(){
    var eventTime = '1366549200';
    var currentTime = '1366547400';
    var time = eventTime - currentTime;
    var duration = moment.duration(time*1000, 'milliseconds');
    var interval = 1000;
    setInterval(function(){
      duration = moment.duration(duration.asMilliseconds() - interval, 'milliseconds');
      $('.countdown').text(moment(duration.asMilliseconds()).format('H[h]:mm[m]:ss[s]'));
    }, interval);
  });
  </script>

我读了momentjs的文档来找出问题，但是没有运气。

感谢您的宝贵时间。

更新:

我最后这样做:

<script>
  $(document).ready(function(){
    var eventTime = '1366549200';
    var currentTime = '1366547400';
    var leftTime = eventTime - currentTime;//Now i am passing the left time from controller itself which handles timezone stuff (UTC), just to simply question i used harcoded values.
    var duration = moment.duration(leftTime, 'seconds');
    var interval = 1000;
    setInterval(function(){
      // Time Out check
      if (duration.asSeconds() <= 0) {
        clearInterval(intervalId);
        window.location.reload(true); #skip the cache and reload the page from the server
      }
      //Otherwise
      duration = moment.duration(duration.asSeconds() - 1, 'seconds');
      $('.countdown').text(duration.days() + 'd:' + duration.hours()+ 'h:' + duration.minutes()+ 'm:' + duration.seconds() + 's');
    }, interval);
  });
  </script>

JS小提琴。

在最后一个语句中，您将持续时间转换为考虑时区的时间。我假设你的时区是+530，所以5小时30分钟加到30分钟。你可以按照下面的方法做。

var eventTime= 1366549200; // Timestamp - Sun, 21 Apr 2013 13:00:00 GMT
var currentTime = 1366547400; // Timestamp - Sun, 21 Apr 2013 12:30:00 GMT
var diffTime = eventTime - currentTime;
var duration = moment.duration(diffTime*1000, 'milliseconds');
var interval = 1000;
setInterval(function(){
  duration = moment.duration(duration - interval, 'milliseconds');
    $('.countdown').text(duration.hours() + ":" + duration.minutes() + ":" + duration.seconds())
}, interval);

查看这个插件:

moment-countdown

moment-countdown是一个小小的moment.js插件，它集成了Countdown.js。文件在这里。

它是如何工作的?

//from then until now
moment("1982-5-25").countdown().toString(); //=> '30 years, 10 months, 14 days, 1 hour, 8 minutes, and 14 seconds'
//accepts a moment, JS Date, or anything parsable by the Date constructor
moment("1955-8-21").countdown("1982-5-25").toString(); //=> '26 years, 9 months, and 4 days'
//also works with the args flipped, like diff()
moment("1982-5-25").countdown("1955-8-21").toString(); //=> '26 years, 9 months, and 4 days'
//accepts all of countdown's options
moment().countdown("1982-5-25", countdown.MONTHS|countdown.WEEKS, NaN, 2).toString(); //=> '370 months, and 2.01 weeks'

虽然我确信这不会被接受为这个非常古老的问题的答案，但我来这里寻找一种方法来做到这一点，这就是我解决问题的方法。

我在codependency .io创建了一个演示。

Html:

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.13.0/moment.min.js" type="text/javascript"></script>
<script src="https://cdn.rawgit.com/mckamey/countdownjs/master/countdown.min.js" type="text/javascript"></script>
<script src="https://code.jquery.com/jquery-3.0.0.min.js" type="text/javascript"></script>
<div>
  The time is now: <span class="now"></span>, a timer will go off <span class="duration"></span> at <span class="then"></span>
</div>
<div class="difference">The timer is set to go off <span></span></div>
<div class="countdown"></div>

Javascript:

var now = moment(); // new Date().getTime();
var then = moment().add(60, 'seconds'); // new Date(now + 60 * 1000);
$(".now").text(moment(now).format('h:mm:ss a'));
$(".then").text(moment(then).format('h:mm:ss a'));
$(".duration").text(moment(now).to(then));
(function timerLoop() {
  $(".difference > span").text(moment().to(then));
  $(".countdown").text(countdown(then).toString());
  requestAnimationFrame(timerLoop);
})();

输出:

The time is now: 5:29:35 pm, a timer will go off in a minute at 5:30:35 pm
The timer is set to go off in a minute
1 minute

注意:上面的第二行是根据momentjs更新的，上面的第三行是根据countdownjs更新的，由于requestAnimationFrame()

，所有这些都以大约60FPS的速度动画。

代码片段:

或者，您可以查看以下代码片段:

var now = moment(); // new Date().getTime();
var then = moment().add(60, 'seconds'); // new Date(now + 60 * 1000);
$(".now").text(moment(now).format('h:mm:ss a'));
$(".then").text(moment(then).format('h:mm:ss a'));
$(".duration").text(moment(now).to(then));
(function timerLoop() {
  $(".difference > span").text(moment().to(then));
  $(".countdown").text(countdown(then).toString());
  requestAnimationFrame(timerLoop);
})();
// CountdownJS: http://countdownjs.org/
// Rawgit: http://rawgit.com/
// MomentJS: http://momentjs.com/
// jQuery: https://jquery.com/
// Light reading about the requestAnimationFrame pattern:
// http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
// https://css-tricks.com/using-requestanimationframe/

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.13.0/moment.min.js" type="text/javascript"></script>
<script src="https://cdn.rawgit.com/mckamey/countdownjs/master/countdown.min.js" type="text/javascript"></script>
<script src="https://code.jquery.com/jquery-3.0.0.min.js" type="text/javascript"></script>
<div>
  The time is now: <span class="now"></span>,
</div>
<div>
  a timer will go off <span class="duration"></span> at <span class="then"></span>
</div>
<div class="difference">The timer is set to go off <span></span></div>
<div class="countdown"></div>

要求:

CountdownJS: http://countdownjs.org/(和Rawgit能够使用CountdownJS)
MomentJS: http://momentjs.com/
requestAnimationFrame() -使用这个动画而不是setInterval()。

可选要求:

jQuery: https://jquery.com/

另外，这里有一些关于requestAnimationFrame()模式的简单阅读:

http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
https://css-tricks.com/using-requestanimationframe/

我发现requestAnimationFrame()模式是比setInterval()模式更优雅的解决方案。

我想我也会把这个扔出去(没有插件)。它倒数10秒进入未来。

    var countDownDate = moment().add(10, 'seconds');
      var x = setInterval(function() {
        diff = countDownDate.diff(moment());
    
        if (diff <= 0) {
          clearInterval(x);
           // If the count down is finished, write some text 
          $('.countdown').text("EXPIRED");
        } else
          $('.countdown').text(moment.utc(diff).format("HH:mm:ss"));
      }, 1000);

<script src="https://momentjs.com/downloads/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="countdown"></div>

时区。如果你想让来自世界各地的访问者获得相同的时间，你必须通过使用getTimezoneOffset()来处理它们。

试试这个http://jsfiddle.net/cxyms/2/，它适用于我，但我不确定它是否适用于其他时区。

var eventTimeStamp = '1366549200'; // Timestamp - Sun, 21 Apr 2013 13:00:00 GMT
var currentTimeStamp = '1366547400'; // Timestamp - Sun, 21 Apr 2013 12:30:00 GMT
var eventTime = new Date();
eventTime.setTime(366549200);
var Offset = new Date(eventTime.getTimezoneOffset()*60000)
var Diff = eventTimeStamp - currentTimeStamp + (Offset.getTime() / 2);
var duration = moment.duration(Diff, 'milliseconds');
var interval = 1000;
setInterval(function(){
  duration = moment.duration(duration.asMilliseconds() - interval, 'milliseconds');
  $('.countdown').text(moment(duration.asMilliseconds()).format('H[h]:mm[m]:ss[s]'));
}, interval);

这里有一些其他的解决方案。不需要使用额外的插件

代码段使用.subtract API，需要力矩2.1.0+

片段也可以在这里获得https://jsfiddle.net/traBolic/ku5cyrev/

使用.format API格式化:

const duration = moment.duration(9, 's');
const intervalId = setInterval(() => {
  duration.subtract(1, "s");
  const inMilliseconds = duration.asMilliseconds();
  // "mm:ss:SS" will include milliseconds
  console.log(moment.utc(inMilliseconds).format("HH[h]:mm[m]:ss[s]"));
  if (inMilliseconds !== 0) return;
  clearInterval(intervalId);
  console.warn("Times up!");
}, 1000);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.27.0/moment.min.js"></script>

使用.hours, .minutes和.seconds API在模板字符串中手动格式化

const duration = moment.duration(9, 's');
const intervalId = setInterval(() => {
  duration.subtract(1, "s");
  console.log(`${duration.hours()}h:${duration.minutes()}m:${duration.seconds()}s`);
  // `:${duration.milliseconds()}` to add milliseconds
  if (duration.asMilliseconds() !== 0) return;
  clearInterval(intervalId);
  console.warn("Times up!");
}, 1000);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.27.0/moment.min.js"></script>

下面还需要moment-duration-format插件:

$.fn.countdown = function ( options ) {
    var $target = $(this);
    var defaults = {
        seconds: 0,
        format: 'hh:mm:ss',
        stopAtZero: true
    };
    var settings = $.extend(defaults, options);
    var eventTime = Date.now() + ( settings.seconds * 1000 );
    var diffTime = eventTime - Date.now();
    var duration = moment.duration( diffTime, 'milliseconds' );
    var interval = 0;
    $target.text( duration.format( settings.format, { trim: false }) );
    var counter = setInterval(function () {
        $target.text( moment.duration( duration.asSeconds() - ++interval, 'seconds' ).format( settings.format, { trim: false }) );
        if( settings.stopAtZero && interval >= settings.seconds ) clearInterval( counter );
    }, 1000);
};

使用例子:

$('#someDiv').countdown({
    seconds: 30*60,
    format: 'mm:ss'
});

这是我的5分钟计时器:

var start = moment("5:00", "m:ss");
var seconds = start.minutes() * 60;
this.interval = setInterval(() => {
    this.timerDisplay = start.subtract(1, "second").format("m:ss");
    seconds--;
    if (seconds === 0) clearInterval(this.interval);
}, 1000);

以上答案的组合对我来说很有效。

const moment = require('moment');
require("moment-countdown");
let timeRemaining = 2330;
console.log('moment', moment(moment().add(timeRemaining, 'seconds')).countdown().toString());

您没有使用react native或react，所以请原谅我这不是您的解决方案。-因为这是一个7年前的帖子，我很确定你现在已经明白了;)

但是我正在寻找类似的react-native的东西，这让我想到了这个问题。万一有人和我走同样的路，我想我应该分享我的use-moment-countdown hook for react或react native: https://github.com/BrooklinJazz/use-moment-countdown.

例如，你可以像这样设置一个10分钟的计时器:

import React from 'react'
import  { useCountdown } from 'use-moment-countdown'
const App = () => {
  const {start, time} = useCountdown({m: 10})
  return (
    <div onClick={start}>
      {time.format("hh:mm:ss")}
    </div>
  )
}
export default App