Implement countdown function in html and js
Mainly used knowledge points for countdown: 1. The setInterval that sets the time interval can be canceled by clearInterval
This is the rendering
The following is the function in js
var shijian=3600;
var time=null;
function start(){
time=setInterval("count()",1000);//返回值time只是为了需要暂停的时候clearInterval(time)清除时间间隔
}
function count(){
if(shijian<0){
alert("time out");
pause();//一般情况下这个if条件是用来提交数据用的,这里只是测试一下。
}else{
$("#time p").html(Math.floor(shijian/60)+":"+shijian%60);//这里用到将毫秒转换到时分格式
shijian--;
console.info(time);
}
}
function pause(){
clearInterval(time);
}
function goOn(){
time = setInterval("count()",1000);//重新设置时间间隔
}The second one is the html resource , for the convenience, I wrote the css directly in the html
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="1.js"></script>
<script src="jquery-1.8.3.min.js"></script>
<style type="text/css">
input{
background-color: #9fc5f1;
width: 100px;
height: 30px;
line-height: 30px;
text-align: center;
color: #fff;
font-size:14px;
font-weight: bold;
}
#time p{
color: #1f6dc2;
font-size: 48px;
font-weight: bold;
margin-left:90px;
margin-bottom:0px;
}
</style>
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<body>
<div id="time">
<p>00:00</p>
<input type="button" value="开始" onclick="start()"/>
<input type="button" value="暂停" onclick="pause()"/>
<input type="button" value="继续" onclick="goOn()"/>
</div>
</body>
</html>The above is the detailed content of Implement countdown function in html and js. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Table Border in HTML
Sep 04, 2024 pm 04:49 PM
Guide to Table Border in HTML. Here we discuss multiple ways for defining table-border with examples of the Table Border in HTML.
Nested Table in HTML
Sep 04, 2024 pm 04:49 PM
This is a guide to Nested Table in HTML. Here we discuss how to create a table within the table along with the respective examples.
HTML margin-left
Sep 04, 2024 pm 04:48 PM
Guide to HTML margin-left. Here we discuss a brief overview on HTML margin-left and its Examples along with its Code Implementation.
HTML Table Layout
Sep 04, 2024 pm 04:54 PM
Guide to HTML Table Layout. Here we discuss the Values of HTML Table Layout along with the examples and outputs n detail.
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
Moving Text in HTML
Sep 04, 2024 pm 04:45 PM
Guide to Moving Text in HTML. Here we discuss an introduction, how marquee tag work with syntax and examples to implement.
HTML Ordered List
Sep 04, 2024 pm 04:43 PM
Guide to the HTML Ordered List. Here we also discuss introduction of HTML Ordered list and types along with their example respectively
HTML onclick Button
Sep 04, 2024 pm 04:49 PM
Guide to HTML onclick Button. Here we discuss their introduction, working, examples and onclick Event in various events respectively.
