How to match non-capturing group

Question

This is my input string

=abc123&

I need to match the alphanumeric portion without capturing = and & .

The solution I found is to use a non-capturing group like:

(?:=)[a-zA-Z0-9]+

The issue is that this matches

=abc123

including = which I don't want to be included.

I tested the regex with http://www.regexr.com/

Answer 1

[a-zA-Z0-9]+

You can simply use this.Or

=([a-zA-Z0-9]+)(?=&)

You can use this and grab the group 1 .See demo.