JS正则表达式验证表单数据
2017-02-18 10:47
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常用的验证方法:
checkUserNameflag=false;
checkPasswordflag=false;
checkPasswordAgianflag=false;
checkEmailflag=false;
// 用户名校验
function checkUserName() {
var username = $("userNeme").value;
var zz = /^[A-Za-z0-9]{6,}$/;
if (!zz.test(username)) {
$("userName_warn").innerHTML = " × 用户名不符合规范";
checkUserNameflag=false;
} else {
/*$("userName_warn").style.color='blue';
$("userName_warn").innerHTML = "√ 用户名可用";*/
showUserExist(username);
checkUserNameflag=true;
}
}
//重置提示
function resetWarn(){
$("userName_warn").innerHTML="";
$("email_warn").innerHTML="";
$("password_warn").innerHTML="";
$("Repassword_warn").innerHTML="";
}
// 密码校验
function checkPassword() {
var password1 = $("password").value;
if (password1.length >= 6 && password1.length <= 15) {
checkPasswordflag = true;
$("password_warn").style.color='blue';
$("password_warn").innerHTML = " √ 密码可用 ";
checkAgianMiMa();
} else {
checkPasswordflag = false;
$("password_warn").innerHTML = " × 密码至少为 6 个字符 ";
}
}
function checkPasswordAgian() {
var password1 = $("password").value;
var password2 = $("rePassword").value;
if (password1 == password2) {
if (password1 == "") {
$("Repassword_warn").innerHTML = " × 请输入密码 ";
checkPasswordAgianflag = false;
return;
}
$("Repassword_warn").style.color='blue';
$("Repassword_warn").innerHTML = "√ 重复输入密码正确";
checkPasswordAgianflag = true;
} else {
checkPasswordAgianflag = false;
$("Repassword_warn").innerHTML = " × 两次密码输入不同 ";
}
}
function checkEmail(){
//对电子邮件的验证
var myreg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;
var email=$("email").value;
if(!myreg.test(email)){
checkEmailflag=false;
$("email_warn").style.color='red';
$("email_warn").innerHTML = " × 邮箱格式不符合规范";
} else {
checkEmailflag=true;
$("email_warn").style.color='blue';
$("email_warn").innerHTML = "√ 邮箱格式正确";
}
}
function submitCheck(){
alert(checkUserNameflag);
if(checkUserNameflag==false || checkPasswordflag==false || checkPasswordflag==false
||checkPasswordAgianflag==false || checkEmailflag==false){
return;
}
}
function $(id){
return document.getElementById(id);
}
checkUserNameflag=false;
checkPasswordflag=false;
checkPasswordAgianflag=false;
checkEmailflag=false;
// 用户名校验
function checkUserName() {
var username = $("userNeme").value;
var zz = /^[A-Za-z0-9]{6,}$/;
if (!zz.test(username)) {
$("userName_warn").innerHTML = " × 用户名不符合规范";
checkUserNameflag=false;
} else {
/*$("userName_warn").style.color='blue';
$("userName_warn").innerHTML = "√ 用户名可用";*/
showUserExist(username);
checkUserNameflag=true;
}
}
//重置提示
function resetWarn(){
$("userName_warn").innerHTML="";
$("email_warn").innerHTML="";
$("password_warn").innerHTML="";
$("Repassword_warn").innerHTML="";
}
// 密码校验
function checkPassword() {
var password1 = $("password").value;
if (password1.length >= 6 && password1.length <= 15) {
checkPasswordflag = true;
$("password_warn").style.color='blue';
$("password_warn").innerHTML = " √ 密码可用 ";
checkAgianMiMa();
} else {
checkPasswordflag = false;
$("password_warn").innerHTML = " × 密码至少为 6 个字符 ";
}
}
function checkPasswordAgian() {
var password1 = $("password").value;
var password2 = $("rePassword").value;
if (password1 == password2) {
if (password1 == "") {
$("Repassword_warn").innerHTML = " × 请输入密码 ";
checkPasswordAgianflag = false;
return;
}
$("Repassword_warn").style.color='blue';
$("Repassword_warn").innerHTML = "√ 重复输入密码正确";
checkPasswordAgianflag = true;
} else {
checkPasswordAgianflag = false;
$("Repassword_warn").innerHTML = " × 两次密码输入不同 ";
}
}
function checkEmail(){
//对电子邮件的验证
var myreg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;
var email=$("email").value;
if(!myreg.test(email)){
checkEmailflag=false;
$("email_warn").style.color='red';
$("email_warn").innerHTML = " × 邮箱格式不符合规范";
} else {
checkEmailflag=true;
$("email_warn").style.color='blue';
$("email_warn").innerHTML = "√ 邮箱格式正确";
}
}
function submitCheck(){
alert(checkUserNameflag);
if(checkUserNameflag==false || checkPasswordflag==false || checkPasswordflag==false
||checkPasswordAgianflag==false || checkEmailflag==false){
return;
}
}
function $(id){
return document.getElementById(id);
}
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