如何在JavaScript中停止计时器?

本文介绍了如何在JavaScript中停止计时器?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想通过单击按钮停止计时器，但是我找不到确切的方法.我试图通过 clearInterval()停止计时器，但不确定是否调用正确.

I want to stop a timer by clicking a button but I can't find the exact way.I've tried to stop a timer by clearInterval() but I'm not sure if it is called properly.

这是我的工作代码.

<html>
<head>
    <title>Bootstrap</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" type="text/css" href="setest_style.css">
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

    <script type="text/javascript">
      var sec = 0;

      function pad(val) {
        return val > 9 ? val : "0" + val;
      };

      setInterval( function(){
        $("#seconds").html(pad(++sec%60));
        $("#minutes").html(pad(parseInt(sec/60,10)));
      }, 1000);

      function myStopFunction() {
        clearInterval(sec);
      }
    </script>
</head>
<body>
    <div class="quiz-time">
        <div class="timer">
            <span id="minutes">00</span>:<span id="seconds">00</span>
        </div>
        <button href="#" id="show-explanation" class="button1" onclick="myStopFunction()">Stop</button>
    </div>
</body>

</html>

推荐答案

将设置的间隔作为变量，然后使用清除间隔

take that set interval into a variable then use clear interval

var myInterval = setInterval( function(){
          $("#seconds").html(pad(++sec%60));
          $("#minutes").html(pad(parseInt(sec/60,10)));
      }, 1000);
      function myStopFunction() {
              clearInterval(myInterval);
      }

这篇关于如何在JavaScript中停止计时器?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！