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Javasacript倒数计时器，以天，小时，分钟，秒为单位

Javasacript Countdown timer in Days, Hours, Minute, Seconds

本文关键字：分钟 为单位 小时 以天 倒数 计时器 Javasacript | 更新日期: 2023-09-27

>我正在尝试创建一个基于时间的倒计时时钟。它不是基于current_dates。将拉取的初始时间将来自单独的 php 文件。这将适用于基于浏览器的游戏。当有人单击按钮以启动此脚本时。它将检查是否满足某些要求，如果是，则此脚本将启动。根据对象的级别，它将拉取该继续级别的初始计时器。希望这是有道理的。无论如何，我基于我提供的第一个代码来编写计时器脚本。

此脚本仅占分钟和秒。我修改了它以包括天数和小时数。在这个过程中的某个地方我搞砸了，脚本甚至根本不起作用。 我也不太确定这是否是计算此值的最佳方法。因此，如果您有更清洁的方法，请分享。提前谢谢你。

这个脚本是基于我看到的分钟/秒脚本。以下是原始来源：

<span id="countdown" class="timer"></span>
<script>
   var seconds = 60;
   function secondPassed() {
   var minutes = Math.round((seconds - 30)/60);
   var remainingSeconds = seconds % 60;
   if (remainingSeconds < 10) {
      remainingSeconds = "0" + remainingSeconds; 
   }
   document.getElementById('countdown').innerHTML = minutes + ":" + remainingSeconds;
   if (seconds == 0) {
    clearInterval(countdownTimer);
    document.getElementById('countdown').innerHTML = "Buzz Buzz";
   } else {
    seconds--;
   }
   }
   var countdownTimer = setInterval('secondPassed()', 1000);
</script>

这是我尝试包含天、小时、分钟和秒的修改脚本。

<span id="countdown"></span>
<script>
     var current_level = 93578;
     function timer() {
        var days = Math.round(current_level/86400);
        var remainingDays = Math.round(current_level - (days * 86400));
        if (days <= 0){
             days = current_level;
        }
        var hours = Math.round(remainingDays/3600);
        var remainingHours = Math.round(remainingDays - (hours * 3600));
        if (hours >= 24){
             hours = 23;
        }
        var minutes = Math.round(remainingHours/60);
        var remainingMinutes = Math.round(remainingHours - (minutes * 60));
        if (minutes >= 60) {
             minutes = 59;
        }
        var seconds = Math.round(remainingMinutes/60);
        document.getElementById('countdown').innerHTML = days + ":" + hours ":" + minutes + ":" + seconds;
        if (seconds == 0) {
             clearInterval(countdownTimer);
             document.getElementById('countdown').innerHTML = "Completed";
        }
     }
     var countdownTimer = setInterval('timer()', 1000);
</script>

我终于回过头来查看并重新编写了代码，这就像一个魅力。

var upgradeTime = 172801;
var seconds = upgradeTime;
function timer() {
  var days        = Math.floor(seconds/24/60/60);
  var hoursLeft   = Math.floor((seconds) - (days*86400));
  var hours       = Math.floor(hoursLeft/3600);
  var minutesLeft = Math.floor((hoursLeft) - (hours*3600));
  var minutes     = Math.floor(minutesLeft/60);
  var remainingSeconds = seconds % 60;
  function pad(n) {
    return (n < 10 ? "0" + n : n);
  }
  document.getElementById('countdown').innerHTML = pad(days) + ":" + pad(hours) + ":" + pad(minutes) + ":" + pad(remainingSeconds);
  if (seconds == 0) {
    clearInterval(countdownTimer);
    document.getElementById('countdown').innerHTML = "Completed";
  } else {
    seconds--;
  }
}
var countdownTimer = setInterval('timer()', 1000);
<span id="countdown" class="timer"></span>

就个人而言，我会使用 jquery 倒数计时器集成。它很简单，并且有许多选项可以以不同的格式显示。由于我对JS也很陌生，这是我发现的获取计数/计时器的最简单方法。

http://keith-wood.name/countdown.html

这是我根据您的

代码制定和测试的示例

<span id="countdown"></span>
<script>
     var current_level = 3002;
     function timer() {
        var days = Math.floor(current_level/86400);
        var remainingDays = current_level - (days * 86400);
        //if (days <= 0){
        //    days = current_level;
        //}
        var hours = Math.floor(remainingDays/3600);
        var remainingHours = remainingDays - (hours * 3600);
        //if (hours >= 24){
        //     hours = 23;
        //}
        var minutes = Math.floor(remainingHours/60);
        var remainingMinutes = remainingHours - (minutes * 60);
        //if (minutes >= 60) {
        //     minutes = 59;
        //}
        var seconds = remainingMinutes;
        document.getElementById('countdown').innerHTML = days + ":" + hours + ":" + minutes + ":" + seconds;
        //if (seconds == 0) {
        //    clearInterval(countdownTimer);
        //     document.getElementById('countdown').innerHTML = "Completed";
        //}
        current_level--;
     }
     var countdownTimer = setInterval(timer, 1000);
</script>

此代码将帮助您处理在单个页面上处理多个计时器的问题 

    var seconds_inputs =  document.getElementsByClassName('deal_left_seconds');
    var total_timers = seconds_inputs.length;
    for ( var i = 0; i < total_timers; i++){
        var str_seconds = 'seconds_'; var str_seconds_prod_id = 'seconds_prod_id_';
        var seconds_prod_id = seconds_inputs[i].getAttribute('data-value');
        var cal_seconds = seconds_inputs[i].getAttribute('value');
        eval('var ' + str_seconds + seconds_prod_id + '= ' + cal_seconds + ';');
        eval('var ' + str_seconds_prod_id + seconds_prod_id + '= ' + seconds_prod_id + ';');
    }
    function timer() {
        for ( var i = 0; i < total_timers; i++) {
            var seconds_prod_id = seconds_inputs[i].getAttribute('data-value');
            var days = Math.floor(eval('seconds_'+seconds_prod_id) / 24 / 60 / 60);
            var hoursLeft = Math.floor((eval('seconds_'+seconds_prod_id)) - (days * 86400));
            var hours = Math.floor(hoursLeft / 3600);
            var minutesLeft = Math.floor((hoursLeft) - (hours * 3600));
            var minutes = Math.floor(minutesLeft / 60);
            var remainingSeconds = eval('seconds_'+seconds_prod_id) % 60;
            function pad(n) {
                return (n < 10 ? "0" + n : n);
            }
            document.getElementById('deal_days_' + seconds_prod_id).innerHTML = pad(days);
            document.getElementById('deal_hrs_' + seconds_prod_id).innerHTML = pad(hours);
            document.getElementById('deal_min_' + seconds_prod_id).innerHTML = pad(minutes);
            document.getElementById('deal_sec_' + seconds_prod_id).innerHTML = pad(remainingSeconds);
            if (eval('seconds_'+ seconds_prod_id) == 0) {
                clearInterval(countdownTimer);
                document.getElementById('deal_days_' + seconds_prod_id).innerHTML = document.getElementById('deal_hrs_' + seconds_prod_id).innerHTML = document.getElementById('deal_min_' + seconds_prod_id).innerHTML = document.getElementById('deal_sec_' + seconds_prod_id).innerHTML = pad(0);
            } else {
                var value = eval('seconds_'+seconds_prod_id);
                value--;
                eval('seconds_' + seconds_prod_id + '= ' + value + ';');
            }
        }
    }
    var countdownTimer = setInterval('timer()', 1000);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="hidden" class="deal_left_seconds" data-value="1" value="10">
<div class="box-wrapper">
    <div class="date box"> <span class="key" id="deal_days_1">00</span> <span class="value">DAYS</span> </div>
</div>
<div class="box-wrapper">
    <div class="hour box"> <span class="key" id="deal_hrs_1">00</span> <span class="value">HRS</span> </div>
</div>
<div class="box-wrapper">
    <div class="minutes box"> <span class="key" id="deal_min_1">00</span> <span class="value">MINS</span> </div>
</div>
<div class="box-wrapper hidden-md">
    <div class="seconds box"> <span class="key" id="deal_sec_1">00</span> <span class="value">SEC</span> </div>
</div>

const Panel = ({ label, n }) => (
  <div className="panel">
    <small>{label}</small>
    <span>{n < 10 ? '0' + n : n}</span>
  </div>
)
const App = () => {
  const [secondsLeft, setSecondsLeft] = React.useState(86403)
  React.useEffect(() => {
    const interval = setInterval(() => {
      if (secondsLeft == 0) {
        clearInterval(interval)
        console.log('Times up!')
      } else {
        setSecondsLeft(secondsLeft - 1)
      }
    }, 1000)
    return () => clearInterval(interval)
  })
  const days = Math.floor(secondsLeft / 24 / 60 / 60)
  const hoursLeft = Math.floor(secondsLeft - days * 86400)
  const hours = Math.floor(hoursLeft / 3600)
  const minutesLeft = Math.floor(hoursLeft - hours * 3600)
  const minutes = Math.floor(minutesLeft / 60)
  const seconds = secondsLeft % 60
  return (
    <div className="root">
      <Panel label="Days" n={days} />
      <Panel label="Hours" n={hours} />
      <Panel label="Minutes" n={minutes} />
      <Panel label="Seconds" n={seconds} />
    </div>
  )
}
ReactDOM.render(<App />, document.getElementById('root'))
.root {
  display: flex;
}
.panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-right: 8px;
  color: #444;
}
.panel small {
  font-size: 9px;
  text-transform: uppercase;
  font-family: sans-serif;
}
.panel span {
  font-size: 3em;
  font-weight: bold;
  font-family: serif;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.1/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js"></script>
<div id="root"></div>

var upgradeTime = 172801;
var seconds = upgradeTime;
function timer() {
  var days        = Math.floor(seconds/24/60/60);
  var hoursLeft   = Math.floor((seconds) - (days*86400));
  var hours       = Math.floor(hoursLeft/3600);
  var minutesLeft = Math.floor((hoursLeft) - (hours*3600));
  var minutes     = Math.floor(minutesLeft/60);
  var remainingSeconds = seconds % 60;
  function pad(n) {
    return (n < 10 ? "0" + n : n);
  }
  document.getElementById('countdown').innerHTML = pad(days) + ":" + pad(hours) + ":" + pad(minutes) + ":" + pad(remainingSeconds);
  if (seconds == 0) {
    clearInterval(countdownTimer);
    document.getElementById('countdown').innerHTML = "Completed";
  } else {
    seconds--;
  }
}
var countdownTimer = setInterval('timer()', 1000);
<span id="countdown" class="timer"></span>

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