Regex in angularjs

Question

I have to create a regex to validate ticket string in correct format.

Ticket format:

SFHD00002523003

It starts with four alphabets and ends with 12 numeric characters.

This is my code in my angular controller:

var pattern = new RegExp('[A-Z]{4}\\d{12}$');
console.log(pattern.test('SFHD00002523003');

Unfortunately, it is returning false for correct string, too.

Unless I've forgotten how to count, those are not 12 digits in your test string... ಠ_ಠ — deceze
– deceze ♦, Commented Feb 2, 2016 at 13:28
You need to use @ and then the user name without spaces to make sure the user is notified. I came back here by chance. Posted as an answer. — Wiktor Stribiżew
– Wiktor Stribiżew, Commented Feb 2, 2016 at 21:50

Shaishab Roy · Accepted Answer · 2016-02-02 13:40:00Z

1

Need double backslash instead of single. like: \\d instead of \d in your expression

var pattern= new RegExp('([A-Z]){4}\\d{12}');

and your string has 11 numeric chars not 12

edited Feb 2, 2016 at 13:40

answered Feb 2, 2016 at 13:34

Shaishab Roy

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Wiktor Stribiżew · Accepted Answer · 2016-02-02 21:50:05Z

1

You forgot the start of string anchor ^ to make sure you only match 16 character string. If you do not use it, you will get a match inside a 17+ character string that ends with your pattern.

Thus, use

var pattern = /^[A-Z]{4}\d{12}$/;
               ^

answered Feb 2, 2016 at 21:50

Wiktor Stribiżew

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