ng-pattern not working properly, matching every string

Question

I need to validate a password field with pattern matching. I used ng-pattern for that. But it is not working properly.

The pattern I gave here is, the text should contain at least 8 characters with symbols, alphabets and digits. But when I enter any string the pattern match become true.

See the following code

<body ng-controller="MainCtrl">
    <form name="form">
      <input type="text" name="password" ng-model="user.password" ng-pattern="/(^.*(?=.{8,})(?=.*\d)(?=.*[a-z])(?=.*[\W]).*$)/">
      <input type="submit">
      {{form.password.$error}}
    </form>
</body>

What am I missing here?

You should show the code in the question

Sionnach733
– Sionnach733

2013-11-26 11:47:11 +00:00
Commented Nov 26, 2013 at 11:47 — Sionnach733
– Sionnach733, Commented Nov 26, 2013 at 11:47
I gave a pluker link. It contains the code.

Sajith
– Sajith

2013-11-26 11:56:08 +00:00
Commented Nov 26, 2013 at 11:56 — Sajith
– Sajith, Commented Nov 26, 2013 at 11:56

Nikos Paraskevopoulos · Accepted Answer · 2013-11-26 12:07:39Z

1

This seems to be working. The expression {{form.password.$error}} becomes true if the field is invalid. The empty field does not get validated.

So entering aaaaa (5 letters) makes the field invalid. Adding 1@ (digit+symbol) is still invalid due to length. Adding anything makes it valid (>= 8 characters with letters, digits, symbols → the display says false).

edited Nov 26, 2013 at 12:07

answered Nov 26, 2013 at 12:00

Nikos Paraskevopoulos

40.4k13 gold badges91 silver badges99 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Nikos Paraskevopoulos Over a year ago

You mean the regular expression is incorrect doing what the OP describes?

Nikos Paraskevopoulos Over a year ago

OP writes: "the text should contain at least 8 characters with symbols, alphabets and digits". So 8 letters is invalid indeed.

Collectives™ on Stack Overflow

ng-pattern not working properly, matching every string

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related