search
HomeWeb Front-endJS TutorialJS form validation code (commonly used)_javascript skills

最近没有项目做,有点空余时间,小编把日常比较常用的js表单验证代码整理分享到脚本之家平台,供大家学习,需要的朋友参考下吧!

注册验证:

<script language="JavaScript" src="js/jquery-1.9.1.min.js" type="text/javascript"></script>
//验证表单
function vailForm(){
var form = jQuery("#editForm");
if(!vailNickName())return;
if(!vailPhone())return;
if(!vailPwd())return;
if(!vailConfirmPwd())return;
if(!vailEmail())return;
if(!vailCode())return;
if(!vailAgree())return;
form.submit();
}
//验证昵称
function vailNickName(){
var nickName = jQuery("#nickName").val();
var flag = false;
var message = "";
var patrn=/^\d+$/;
var length = getNickNameLength();
if(nickName == ''){
message = "昵称不能为空!";
}else if(length<4||length>16){
message = "昵称为4-16个字符!";
} else if(checkNickNameIsExist()){
message = "该昵称已经存在,请重新输入!";
}else{
flag = true;
}
if(!flag){
jQuery("#nickNameDiv").removeClass().addClass("ui-form-item has-error");
jQuery("#nickNameP").html("");
jQuery("#nickNameP").html("<i class=\"icon-error ui-margin-right10\"> <\/i>"+message);
//jQuery("#nickName").focus();
}else{
jQuery("#nickNameDiv").removeClass().addClass("ui-form-item has-success");
jQuery("#nickNameP").html("");
jQuery("#nickNameP").html("<i class=\"icon-success ui-margin-right10\"> <\/i>该昵称可用");
}
return flag;
}
//计算昵称长度
function getNickNameLength(){
var nickName = jQuery("#nickName").val();
var len = 0;
for (var i = 0; i < nickName.length; i++) {
var a = nickName.charAt(i);
      //函数格式:stringObj.match(rgExp) stringObj为字符串必选 rgExp为正则表达式必选项
      //返回值:如果能匹配则返回结果数组,如果不能匹配返回null
if (a.match(/[^\x00-\xff]/ig) != null){
len += 2;
}else{
len += 1;
}
}
return len;
}
//验证昵称是否存在
function checkNickNameIsExist(){
var nickName = jQuery("#nickName").val();
var flag = false;
jQuery.ajax(
{ url: "checkNickName&#63;t=" + (new Date()).getTime(),
data:{nickName:nickName},
dataType:"json",
type:"GET",
async:false,
success:function(data) {
var status = data.status;
if(status == "1"){
flag = true;
}
}
});
return flag;
}
//验证手机号
function vailPhone(){
var phone = jQuery("#phone").val();
var flag = false;
var message = "";
//var myreg = /^(((13[0-9]{1})|159|153)+\d{8})$/;
var myreg = /^(((13[0-9]{1})|(14[0-9]{1})|(17[0-9]{1})|(15[0-3]{1})|(15[5-9]{1})|(18[0-3]{1})|(18[5-9]{1}))+\d{8})$/;
if(phone == ''){
message = "手机号码不能为空!";
}else if(phone.length !=11){
message = "请输入有效的手机号码!";
}else if(!myreg.test(phone)){
message = "请输入有效的手机号码!";
}else if(checkPhoneIsExist()){
message = "该手机号码已经被绑定!";
}else{
flag = true;
}
if(!flag){
jQuery("#phoneDiv").removeClass().addClass("ui-form-item has-error");
jQuery("#phoneP").html("");
jQuery("#phoneP").html("<i class=\"icon-error ui-margin-right10\"> <\/i>"+message);
//jQuery("#phone").focus();
}else{
jQuery("#phoneDiv").removeClass().addClass("ui-form-item has-success");
jQuery("#phoneP").html("");
jQuery("#phoneP").html("<i class=\"icon-success ui-margin-right10\"> <\/i>该手机号码可用");
}
return flag;
}
//验证手机号是否存在
function checkPhoneIsExist(){
var phone = jQuery("#phone").val();
var flag = true;
jQuery.ajax(
{ url: "checkPhone&#63;t=" + (new Date()).getTime(),
data:{phone:phone},
dataType:"json",
type:"GET",
async:false,
success:function(data) {
var status = data.status;
if(status == "0"){
flag = false;
}
}
});
return flag;
}
//验证密码
function vailPwd(){
var password = jQuery("#password").val();
var flag = false;
var message = "";
var patrn=/^\d+$/;
if(password ==''){
message = "密码不能为空!";
}else if(password.length<6 || password.length>16){
message = "密码6-16位!";
}else if(patrn.test(password)){
message = "密码不能全是数字!";
}else{
flag = true;
}
if(!flag){
jQuery("#passwordDiv").removeClass().addClass("ui-form-item has-error");
jQuery("#passwordP").html("");
jQuery("#passwordP").html("<i class=\"icon-error ui-margin-right10\"> <\/i>"+message);
//jQuery("#password").focus();
}else{
jQuery("#passwordDiv").removeClass().addClass("ui-form-item has-success");
jQuery("#passwordP").html("");
jQuery("#passwordP").html("<i class=\"icon-success ui-margin-right10\"> <\/i>该密码可用");
}
return flag;
}
//验证确认密码
function vailConfirmPwd(){
var confirmPassword = jQuery("#confirm_password").val();
var patrn=/^\d+$/;
var password = jQuery("#password").val();
var flag = false;
var message = "";
if(confirmPassword == ''){
message = "请输入确认密码!";
}else if(confirmPassword != password){
message = "二次密码输入不一致,请重新输入!";
}else if(patrn.test(password)){
message = "密码不能全是数字!";
}else {
flag = true;
}
if(!flag){
jQuery("#confirmPasswordDiv").removeClass().addClass("ui-form-item has-error");
jQuery("#confirmPasswordP").html("");
jQuery("#confirmPasswordP").html("<i class=\"icon-error ui-margin-right10\"> <\/i>"+message);
//jQuery("#confirm_password").focus();
}else{
jQuery("#confirmPasswordDiv").removeClass().addClass("ui-form-item has-success");
jQuery("#confirmPasswordP").html("");
jQuery("#confirmPasswordP").html("<i class=\"icon-success ui-margin-right10\"> <\/i>密码正确");
}
return flag;
}
//验证邮箱
function vailEmail(){
var email = jQuery("#email").val();
var flag = false;
var message = "";
var myreg = /^([\.a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/; 
if(email ==''){
message = "邮箱不能为空!";
}else if(!myreg.test(email)){
message = "请输入有效的邮箱地址!";
}else if(checkEmailIsExist()){
message = "该邮箱地址已经被注册!";
}else{
flag = true;
}
if(!flag){
jQuery("#emailDiv").removeClass().addClass("ui-form-item has-error");
jQuery("#emailP").html("");
jQuery("#emailP").html("<i class=\"icon-error ui-margin-right10\"> <\/i>"+message);
//jQuery("#email").focus();
}else{
jQuery("#emailDiv").removeClass().addClass("ui-form-item has-success");
jQuery("#emailP").html("");
jQuery("#emailP").html("<i class=\"icon-success ui-margin-right10\"> <\/i>该邮箱可用");
}
return flag;
}
//验证邮箱是否存在
function checkEmailIsExist(){
var email = jQuery("#email").val();
var flag = false;
jQuery.ajax(
{ url: "checkEmail&#63;t=" + (new Date()).getTime(),
data:{email:email},
dataType:"json",
type:"GET",
async:false,
success:function(data) {
var status = data.status;
if(status == "1"){
flag = true;
}
}
});
return flag;
}
//验证验证码
function vailCode(){
var randCode = jQuery("#randCode").val();
var flag = false;
var message = "";
if(randCode == ''){
message = "请输入验证码!";
}else if(!checkCode()){
message = "验证码不正确!";
}else{
flag = true;
}
if(!flag){
jQuery("#randCodeDiv").removeClass().addClass("ui-form-item has-error");
jQuery("#randCodeP").html("");
jQuery("#randCodeP").html("<i class=\"icon-error ui-margin-right10\"> <\/i>"+message);
//jQuery("#randCode").focus();
}else{
jQuery("#randCodeDiv").removeClass().addClass("ui-form-item has-success");
jQuery("#randCodeP").html("");
jQuery("#randCodeP").html("<i class=\"icon-success ui-margin-right10\"> <\/i>");
}
return flag;
}
//检查随机验证码是否正确
function checkCode(){
var randCode = jQuery("#randCode").val();
var flag = false;
jQuery.ajax(
{ url: "checkRandCode&#63;t=" + (new Date()).getTime(),
data:{randCode:randCode},
dataType:"json",
type:"GET",
async:false,
success:function(data) {
var status = data.status;
if(status == "1"){
flag = true;
}
}
});
return flag;
}
//判断是否选中
function vailAgree(){
if(jQuery("#agree").is(":checked")){
return true;
}else{
alert("请确认是否阅读并同意XX协议");
}
return false;
}
function delHtmlTag(str){ var str=str.replace(/<\/&#63;[^>]*>/gim,"");//去掉所有的html标记 var result=str.replace(/(^\s+)|(\s+$)/g,"");//去掉前后空格 return result.replace(/\s/g,"");//去除文章中间空格}<!DOCTYPE html><html><body><h1 id="我的第一段-JavaScript">我的第一段 JavaScript</h1><p>请输入数字。如果输入值不是数字,浏览器会弹出提示框。</p><input id="demo" type="text"><script>function myFunction(){var x=document.getElementById("demo").value;if(x==""){ alert("输入不能为空"); return;}if(isNaN(x)){ alert("请输入数字"); return;}if(x.length!=6){ alert("请输入6位数字"); return;}}</script><button type="button" onclick="myFunction()">点击这里</button></body></html> 
//验证密码为数字字母下划线
function CheckPwd(pwd) {
var validStr = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_~/!@#$%^&*();-+.=,";
for (i = 0; i < pwd.length; i++) {
if (validStr.indexOf(pwd.charAt(i)) == -1) {
return false;
}
}
return true;
}
//验证邮箱格式
function checkemail(email) {
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email)) {
return false;
}
return true;
}
function isEmail(val) {
return /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\&#63;\^_\`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\&#63;\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))&#63;(\x20|\x09)+)&#63;(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))&#63;(\x20|\x09)+)&#63;(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.&#63;$/.test(val);
}
///手机号码验证
function checktelephone(cellPhone) {
var RegCellPhone = /^([0-9]{11})&#63;$/;
falg = cellPhone.search(RegCellPhone);
if (falg == -1) {
return false;
} else {
return true;
}
}
//获取URL参数值
function getParameter(param) {
var query = window.location.search;
var iLen = param.length;
var iStart = query.indexOf(param);
if (iStart == -1)
return "";
iStart += iLen + 1;
var iEnd = query.indexOf("&", iStart);
if (iEnd == -1)
return query.substring(iStart);
return query.substring(iStart, iEnd);
}

以上代码是小编给大家介绍的js表单验证,代码简单易懂,非常实用,希望对大家有所帮助,同时也非常感谢大家对脚本之家网站的支持!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Node.js Streams with TypeScriptNode.js Streams with TypeScriptApr 30, 2025 am 08:22 AM

Node.js excels at efficient I/O, largely thanks to streams. Streams process data incrementally, avoiding memory overload—ideal for large files, network tasks, and real-time applications. Combining streams with TypeScript's type safety creates a powe

Python vs. JavaScript: Performance and Efficiency ConsiderationsPython vs. JavaScript: Performance and Efficiency ConsiderationsApr 30, 2025 am 12:08 AM

The differences in performance and efficiency between Python and JavaScript are mainly reflected in: 1) As an interpreted language, Python runs slowly but has high development efficiency and is suitable for rapid prototype development; 2) JavaScript is limited to single thread in the browser, but multi-threading and asynchronous I/O can be used to improve performance in Node.js, and both have advantages in actual projects.

The Origins of JavaScript: Exploring Its Implementation LanguageThe Origins of JavaScript: Exploring Its Implementation LanguageApr 29, 2025 am 12:51 AM

JavaScript originated in 1995 and was created by Brandon Ike, and realized the language into C. 1.C language provides high performance and system-level programming capabilities for JavaScript. 2. JavaScript's memory management and performance optimization rely on C language. 3. The cross-platform feature of C language helps JavaScript run efficiently on different operating systems.

Behind the Scenes: What Language Powers JavaScript?Behind the Scenes: What Language Powers JavaScript?Apr 28, 2025 am 12:01 AM

JavaScript runs in browsers and Node.js environments and relies on the JavaScript engine to parse and execute code. 1) Generate abstract syntax tree (AST) in the parsing stage; 2) convert AST into bytecode or machine code in the compilation stage; 3) execute the compiled code in the execution stage.

The Future of Python and JavaScript: Trends and PredictionsThe Future of Python and JavaScript: Trends and PredictionsApr 27, 2025 am 12:21 AM

The future trends of Python and JavaScript include: 1. Python will consolidate its position in the fields of scientific computing and AI, 2. JavaScript will promote the development of web technology, 3. Cross-platform development will become a hot topic, and 4. Performance optimization will be the focus. Both will continue to expand application scenarios in their respective fields and make more breakthroughs in performance.

Python vs. JavaScript: Development Environments and ToolsPython vs. JavaScript: Development Environments and ToolsApr 26, 2025 am 12:09 AM

Both Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.

Is JavaScript Written in C? Examining the EvidenceIs JavaScript Written in C? Examining the EvidenceApr 25, 2025 am 12:15 AM

Yes, the engine core of JavaScript is written in C. 1) The C language provides efficient performance and underlying control, which is suitable for the development of JavaScript engine. 2) Taking the V8 engine as an example, its core is written in C, combining the efficiency and object-oriented characteristics of C. 3) The working principle of the JavaScript engine includes parsing, compiling and execution, and the C language plays a key role in these processes.

JavaScript's Role: Making the Web Interactive and DynamicJavaScript's Role: Making the Web Interactive and DynamicApr 24, 2025 am 12:12 AM

JavaScript is at the heart of modern websites because it enhances the interactivity and dynamicity of web pages. 1) It allows to change content without refreshing the page, 2) manipulate web pages through DOMAPI, 3) support complex interactive effects such as animation and drag-and-drop, 4) optimize performance and best practices to improve user experience.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool