Issue in Password Stength : regex

Question

Markup

<form ng-submit="doRegister(registerForm);" novalidate name="registerForm">
    <input type="password" name="Password" ng-model="register.Password" 
        ng-pattern="/^.*(?=.{3,})(?=.*[a-zA-Z])(?=.*[0-9])(?=.*[\d\X])(?=.*[!$#%]).*$/"/>
    <span ng-show="registerForm.Password.$error.pattern" class="help-block">
        min 1 lower char, 1 upper char, 1 digit and one special char 
    </span>
    
    <button type="submit" ng-disabled="registerForm.$invalid" >
        Submit
    </button>
</form>

I am testing the Password Strength with min 1 lower char and 1 upper char and 1 digit and one special char

I am testing this string: a1A@s.com //Failed

I am testing this string: 12345aA! //Passed

Am I doing anything wrong?

Was the failure for the first test case intentional? Because I do it see how it doesn't match your criteria — Mohammad Ali, Feb 18 '17 at 14:47
@Toto: Read the question there carefully. How carelessly you marked it duplicate !!!! My question regex params are completely different from that question !!! — Pankaj, Feb 18 '17 at 15:00
Use this one if you prefer: http://stackoverflow.com/q/2394092/372239 — Toto, Feb 18 '17 at 15:06

anubhava · Answer 1 · 2017-02-18T14:49:25.117

2

It is failing because @ is not part of your character class in last lookahead. You can also simplify your regex to this:

/^(?=.*[a-z])(?=.*[a-z])(?=.*[0-9])(?=.*[@!$#%]).{3,}$/

RegEx Demo

edited Feb 18 '17 at 14:49

answered Feb 18 '17 at 14:46

anubhava

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`(?=.*[a-zA-Z])` should be replaced by `(?=.*[a-z])(?=.*[A-Z])`. – sp00m Feb 18 '17 at 14:48
You're right, I just noticed `min 1 lower char, 1 upper char` part in question. – anubhava Feb 18 '17 at 14:48

Issue in Password Stength : regex

1 Answers1