Regular expression for Password validation 1

[micjohnson]

I need to do the password validation in javascript with the below policies. Will you please let me know how the regular expression look like?

- Password should be 6 to 13 character long.
- Password should have at least one alphabet (a-z, A-Z)
- Password should have at least one numeric value(0-9)
- Password should not have special characters.

Thanks in advance.

 

[feherke]

Hi

And what have you tried so far ?

Feherke.

http://rootshell.be/~feherke/

 

[BillyRayPreachersSon]

I would suggest it might be easier to use more than 1 RegExp to do this, rather than trying to do it in 1 go.

Hope this helps,
Dan



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[MarkZK]

I think if it was me I'd do it in two parts too,

first checking for numbers and letters only,between 6 and 13

pass=/^(\d|\w){6,13}$/;

then do the second to just make sure it contains a letter and a number.

 

[MarkZK]

pass=/^\w{6,13}$/;

even.

 

[micjohnson]

This regular satisfies all the above conditions.

/^(?=.*[A-Za-z])(?=.*[0-9])(?!.*[^A-Za-z0-9])(?!.*\s).{5,12}$/;


eg:

var re = /^(?=.*[A-Za-z])(?=.*[0-9])(?!.*[^A-Za-z0-9])(?!.*\s).{5,12}$/;
if ( !re.test(passwd) )
{
alert('Your password must satisfy the following. \n\n* Password should be 5 to 12 character long. \n* Password should have at least one alphabet. \n* Password should have at least one numeric value. \n* Password should not have special characters.');
return false;
}


Thanks for everybodies time.
Regards

 

[micjohnson]

My first requirement changed from 6-13 to 5-12.