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How to implement countdown function in js? (accurate to milliseconds)
How to implement countdown function in js? (accurate to milliseconds)
This article mainly introduces the effect of js to achieve countdown, and it is accurate to milliseconds. Friends who need it can refer to it. I hope it will be helpful to everyone.
The specific code examples for js implementation of countdown are as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="" />
<title>js精确到毫秒的倒计时代码 </title>
<script type="text/javascript" src="jquery-1.8.3.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var times = 60 * 100; // 60秒
countTime = setInterval(function() {
times = --times < 0 ? 0 : times;
var ms = Math.floor(times / 100).toString();
if(ms.length <= 1) {
ms = "0" + ms;
}
var hm = Math.floor(times % 100).toString();
if(hm.length <= 1) {
hm = "0" + hm;
}
if(times == 0) {
alert("游戏结束");
clearInterval(countTime);
}
// 获取分钟、毫秒数
$(".a").html(ms);
$(".b").html(hm);
}, 10);
});
</script>
<style>
.warp{
width: 100%;
height: 100px;
line-height: 100px;
text-align: center;
font-size: 40px;
font-family: "微软雅黑";
}
.warp strong{
width: 100px;
display: inline-block;
text-align: center;
font-family: georgia;
color: #C9302C;
}
</style>
</head>
<body>
<div class="warp">
<strong class="a">111</strong>秒 <strong class="b"></strong>毫秒</div>
<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
</div>
</body>
</html>
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