Regular Expressions 101

Pro

Positive Lookahead(?=(.{2}))

Group 1(.{2})

.{2}any character (except for line terminators), repeated exactly 2 times

Group 2(ab10|cd14|ef23|mn99)

1st Alternativeab10

ab10the literal text ab10 (case sensitive)

2nd Alternativecd14

cd14the literal text cd14 (case sensitive)

3rd Alternativeef23

ef23the literal text ef23 (case sensitive)

4th Alternativemn99

mn99the literal text mn99 (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

(?=(.{2}))(ab10|cd14|ef23|mn99)

New

I want to match with one of strings: ab10, cd14, ef23, mn99

I want to match with one of strings: ab10, cd14, ef23, mn99