<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>表单验证</title>
<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
</head>
<body>
<div>
<input type="text" id="userName" value="6">
<input type="password" id="password">
<button id="button">提交</button>
</div>
<script>
var m={
userName:$("#userName").val(),
password:$("#password").val(),
userTest:/^[a-zA-Z]{1}[A-Z|a-z|0-9]{5,29}/,
passwordTest:/^(\w){6,20}$/,//6-20个字母
test:function(testDate, testReg,testName){
this.testDate = testDate;
this.testReg = testReg;
this.testName = testName;
this.testFormData=function(){
if(this.testDate==‘‘){
alert(this.testName+‘不能为空,请输入‘)
return false;
}else if(!this.testReg.test(this.testDate)){
alert(testName+‘格式不正确,请重新输入‘)
return false;
}else{
return true;
}
}
},
page:function(){
alert(‘登录成功，欢迎来到百度‘)
window.location=‘https://www.baidu.com‘
},
commit:function(){
this.userName=$("#userName").val();
this.password=$("#password").val();
var test=this.test;
var userNameTest=new test(this.userName,this.userTest,‘用户名‘);
var passwordTest=new test(this.password,this.passwordTest,‘密码‘);
var userNameV=userNameTest.testFormData()
console.log(userNameV)
if(!userNameV){//如果用户名不规范 就直接退出运行 不进行密码验证
return;
}else{
var passwordV=passwordTest.testFormData()
}
if(userNameV&&passwordV){
this.page();
}
}
}
$(‘#button‘).click(function(){
m.commit()
})
</script>
</body>
</html>
原文地址：https://www.cnblogs.com/xts6/p/11312279.html