我花了很多时间试图解决这个问题。我知道这很容易,但它对我不起作用!
我想使用此表达式^.*(?=.{6,})(?=.*[a-zA-Z])[a-zA-Z0-9]+$
使用javascript验证密码。
我不确定如何构造函数以及如何在代码中调用它。我有一些工作来验证电子邮件,但我无法使密码表达工作。
function validateEmail()
{
var emailID = document.myForm.email.value;
atpos = emailID.indexOf("@");
dotpos = emailID.lastIndexOf(".");
if (atpos < 1 || ( dotpos - atpos < 2 ))
{
alert("Please enter correct email address")
document.myForm.email.focus() ;
return false;
}
return( true );
}
function validate()
{
if( document.myForm.email.value == "" )
{
alert( "Please provide your Email!" );
document.myForm.email.focus() ;
return false;
}
else
{
// Put extra check for data format
var ret = validateEmail();
if( ret == false )
{
return false;
}
}
我想从验证功能中调用passwordChecker。
答案 0 :(得分:1)
这应该
function validateEmail()
{
var emailID = document.myForm.email.value;
atpos = emailID.indexOf("@");
dotpos = emailID.lastIndexOf(".");
if (atpos < 1 || ( dotpos - atpos < 2 ))
{
alert("Please enter correct email address")
document.myForm.email.focus() ;
return false;
}
return true;
}
function validatePassword()
{
var reg = /^.*(?=.{6,})(?=.*[a-zA-Z])[a-zA-Z0-9]+$/;
return reg.test(document.myForm.password.value);
}
function validate()
{
if(document.myForm.email.value == "" || !validateEmail())
{
alert( "Please provide a valid Email!" );
document.myForm.email.focus() ;
return false;
}
else if(!validatePassword())
{
alert("Please provide a valid password!");
document.myForm.password.focus() ;
return false;
}
return true;
}
答案 1 :(得分:0)
我的建议
function isEmail(email) {
var re = /^.*(?=.{6,})(?=.*[a-zA-Z])[a-zA-Z0-9]+$/;
return re.test(email);
}
function validate() {
var email = document.myForm.email;
if (email.value.trim() =="") { // may need IE support
alert( "Please provide your Email!" );
email.focus() ;
return false;
}
if (!isEmail(email.value)) {
alert( "Please provide a valid Email!" );
email.focus() ;
return false;
}
return true;
}