This time I will bring you jquery's form verification submission, what are the precautions for jquery form verification submission, the following is a practical case, let's take a look.
Instructions:
1. The js script file path in the code needs to be replaced with your own directory file
2. Ajax is added to the code to verify whether the account exists
nbsp;html> <meta> <title>表单验证</title> <style> font { font-size: 10px; } .info { color: #AAAAAA; } .errormsg { color: #FF3030; } .errorinput { border-color: #FF3030; border-width: 1px; } .ok { color: #32CD32; } </style> <script></script> <script> //账号是否验证过 var accountIsChecked = false; var accountIsOK = false; var passwdIsOK = false; var confirmpwdIsOK = false; var phoneIsOK = false; $(function() { // 验证账号 $("#account").focus(function() { focus_checkaccount(); }).keyup( function() { $("#accountmsg").text("支持中文、字母、数字组合").removeClass() .addClass("info"); accountIsChecked = false; }).blur(function() { blur_checkaccount(); }) // 验证密码 $("#pwd").focus(function() { $("#pwdmsg").text("建议使用数字和字母的组合").removeClass().addClass("info"); }).blur(function() { blur_checkpwd(); blur_confirmpwd(); }); // 验证二次密码 $("#confirmpwd").focus(function() { $("#confirmmsg").text("请再次确认密码").removeClass().addClass("info"); }).blur(function() { blur_confirmpwd(); }); // 验证手机号码 $("#phone").focus(function() { $("#phonemsg").text("建议输入常用手机").removeClass().addClass("info"); }).blur(function() { blur_checkphone(); }) }); function focus_checkaccount() { if (!accountIsChecked) { $("#accountmsg").text("支持中文、字母、数字组合").removeClass() .addClass("info"); } } function blur_checkaccount() { var account = $("#account").val(); if (account != "") { // 判断account是否验证过 if (!accountIsChecked) { // 未验证过,则进行验证 ajax_checkaccount(account); } } else { $("#accountmsg").text(""); accountIsOK = false; } } // ajax请求验证account function ajax_checkaccount(account) { $.get("/airticleMgr/member", { m : "checkAccount", account : account }, function(data) { if ("true" == data) { $("#accountmsg").text("该账号已被注册").removeClass().addClass( "errormsg"); accountIsOK = false; } else { $("#accountmsg").text("√").removeClass().addClass("ok"); accountIsOK = true; } }); accountIsChecked = true; } function blur_checkpwd() { var lpwd = $("#pwd").val().length; if (lpwd > 0) { if (lpwd < 6) { $("#pwdmsg").text("长度在6-20位之间").removeClass().addClass( "errormsg"); passwdIsOK = false; } else { $("#pwdmsg").text("√").removeClass().addClass("ok"); passwdIsOK = true; } } else { $("#pwdmsg").text(""); passwdIsOK = false; } } function blur_confirmpwd() { var pwd = $("#pwd").val(); var confirmpwd = $("#confirmpwd").val(); if (confirmpwd != "") { if (confirmpwd == pwd) { $("#confirmmsg").text("√").removeClass().addClass("ok"); confirmpwdIsOK = true; } else { $("#confirmmsg").text("两次密码输入不一致").removeClass().addClass( "errormsg"); confirmpwdIsOK = false; } } else { $("#confirmmsg").text(""); confirmpwdIsOK = false; } } function blur_checkphone() { var phone = $("#phone").val(); var regix = /^1[34578][0-9]{9}$/; if (phone != "") { if (!regix.test(phone)) { $("#phonemsg").text("手机格式有误").removeClass() .addClass("errormsg"); phoneIsOK = false; } else { $("#phonemsg").text("√").removeClass().addClass("ok"); phoneIsOK = true; } } else { $("#phonemsg").text(""); phoneIsOK = false; } } // 表单验证 function check_form() { if (!accountIsOK) { if ($("#account").val() == "") { $("#accountmsg").text("请输入账号").removeClass().addClass( "errormsg"); } else { } return false; } if (!passwdIsOK) { if ($("#pwd").val() == "") { $("#pwdmsg").text("请输入密码").removeClass().addClass("errormsg"); } else { } return false; } if (!confirmpwdIsOK) { if ($("#confirmpwd").val() == "") { $("#confirmmsg").text("请再次输入密码").removeClass().addClass( "errormsg"); } else { } return false; } if (!phoneIsOK) { if ($("#phone").val() == "") { $("#phonemsg").text("请输入手机").removeClass().addClass("errormsg"); } else { } return false; } if (accountIsOK && passwdIsOK && confirmpwdIsOK && phoneIsOK) { alert("欢迎注册"); return true; } else { alert("请检查信息"); return false; } } </script> <h2 id="会员注册">会员注册</h2>
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
Recommended reading:
The position of tr in the JQuery operation table
How to implement Jquery ajax asynchronous cross-domain
How does jquery plug-in print page content
The above is the detailed content of jquery form validation submission. For more information, please follow other related articles on the PHP Chinese website!

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.

The 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.

JavaScript 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.


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

SublimeText3 Linux new version
SublimeText3 Linux latest version

SublimeText3 Mac version
God-level code editing software (SublimeText3)

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function