Password Validation - Javascript

Question

I want to validate password field. I have tried following code, but getting message that "Your password must satisfy the following...............", even though i enter a correct password format.

var re = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$/;

     if ( !re.test(rpassword) )
       {
       alert('Your password must satisfy the following. \n\n* Password should be 4 to 8 character long. \n* Password should have at least one alphabet. \n* Password should have at least one numeric value. \n* Password should  have special characters.');
       return false;
  }

Not getting what is wrong with this code. Please help !!

What password are you trying? First thing to figure out is whether your password gets passed the regex. — Dan Blows
– Dan Blows, Commented Apr 28, 2011 at 17:13
"password" is password field on my form. I used function checkForm() { var rpassword; rpassword=password; } — user695575
– user695575, Commented Apr 28, 2011 at 17:20
@User729776 I dont get your comment... your checkForm() function is not going to have the same constraints as the OP — clamchoda
– clamchoda, Commented Apr 28, 2011 at 17:23

Pointy · Accepted Answer · 2011-04-28 17:23:49Z

4

Are you sure you don't want:

if ( !re.test(rpassword.value) ) {
  // ...
}

?? You say that "rpassword" is a reference to the password element in your form. If so, then you have to get its "value" attribute first.

answered Apr 28, 2011 at 17:23

Pointy

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sv_in · Accepted Answer · 2011-04-28 17:33:32Z

1

could you try this regular expression?

/^[a-zA-Z0-9!@#$%^&*]{4,8}$/

answered Apr 28, 2011 at 17:33

sv_in

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