Web Front-endJS TutorialSimple code sharing for JavaScript login and password remembering operation
This article will share with you a simple jscode implementationUser login Remember the password operation, the code is simple and easy to understand, very good, and has reference value. Friends who need it can refer to it
No more nonsense, I will post the code directly for everyone. The specific code is as follows :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>记住密码</title>
</head>
<body>
<form id="loginForm">
<input id="user" type="text" placeholder="用户名"><br>
<input id="pswd" type="password" placeholder="密码"><br>
<label><input id="remember" type="checkbox">记住密码</label><br>
<input type='submit' value="登录">
</form>
<script>
window.onload = function(){
var oForm = document.getElementById('loginForm');
var oUser = document.getElementById('user');
var oPswd = document.getElementById('pswd');
var oRemember = document.getElementById('remember');
//页面初始化时，如果帐号密码cookie存在则填充
if(getCookie('user') && getCookie('pswd')){
oUser.value = getCookie('user');
oPswd.value = getCookie('pswd');
oRemember.checked = true;
}
//复选框勾选状态发生改变时，如果未勾选则清除cookie
oRemember.onchange = function(){
if(!this.checked){
delCookie('user');
delCookie('pswd');
}
};
//表单提交事件触发时，如果复选框是勾选状态则保存cookie
oForm.onsubmit = function(){
if(remember.checked){
setCookie('user',oUser.value,7); //保存帐号到cookie，有效期7天
setCookie('pswd',oPswd.value,7); //保存密码到cookie，有效期7天
}
};
};
//设置cookie
function setCookie(name,value,day){
var date = new Date();
date.setDate(date.getDate() + day);
document.cookie = name + '=' + value + ';expires='+ date;
};
//获取cookie
function getCookie(name){
var reg = RegExp(name+'=([^;]+)');
var arr = document.cookie.match(reg);
if(arr){
return arr[1];
}else{
return '';
}
};
//删除cookie
function delCookie(name){
setCookie(name,null,-1);
};
</script>
</body>
</html>The above is the detailed content of Simple code sharing for JavaScript login and password remembering operation. For more information, please follow other related articles on the PHP Chinese website!
The Evolution of JavaScript: Current Trends and Future ProspectsApr 10, 2025 am 09:33 AMThe latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.
Demystifying JavaScript: What It Does and Why It MattersApr 09, 2025 am 12:07 AMJavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.
Is Python or JavaScript better?Apr 06, 2025 am 12:14 AMPython is more suitable for data science and machine learning, while JavaScript is more suitable for front-end and full-stack development. 1. Python is known for its concise syntax and rich library ecosystem, and is suitable for data analysis and web development. 2. JavaScript is the core of front-end development. Node.js supports server-side programming and is suitable for full-stack development.
How do I install JavaScript?Apr 05, 2025 am 12:16 AMJavaScript does not require installation because it is already built into modern browsers. You just need a text editor and a browser to get started. 1) In the browser environment, run it by embedding the HTML file through tags. 2) In the Node.js environment, after downloading and installing Node.js, run the JavaScript file through the command line.
How to send notifications before a task starts in Quartz?Apr 04, 2025 pm 09:24 PMHow to send task notifications in Quartz In advance When using the Quartz timer to schedule a task, the execution time of the task is set by the cron expression. Now...
In JavaScript, how to get parameters of a function on a prototype chain in a constructor?Apr 04, 2025 pm 09:21 PMHow to obtain the parameters of functions on prototype chains in JavaScript In JavaScript programming, understanding and manipulating function parameters on prototype chains is a common and important task...
What is the reason for the failure of Vue.js dynamic style displacement in the WeChat mini program webview?Apr 04, 2025 pm 09:18 PMAnalysis of the reason why the dynamic style displacement failure of using Vue.js in the WeChat applet web-view is using Vue.js...
How to implement concurrent GET requests for multiple links in Tampermonkey and determine the return results in sequence?Apr 04, 2025 pm 09:15 PMHow to make concurrent GET requests for multiple links and judge in sequence to return results? In Tampermonkey scripts, we often need to use multiple chains...
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
Atom editor mac version download
The most popular open source editor
SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.
Zend Studio 13.0.1
Powerful PHP integrated development environment
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
SublimeText3 Chinese version
Chinese version, very easy to use
