Regular Expressions 101

Pro

Group 1((\d)|(A-Z)){8}

{8}repeats the group contents below exactly 8 times:

1st Alternative(\d)

Group 2(\d)

\da digit

2nd Alternative(A-Z)

Group 3(A-Z)

A-Zthe literal text A-Z (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

((\d)|(A-Z)){8}

New

12345678
1234567A-Z
A-ZA-ZA-ZA-ZA-ZA-ZA-ZA-Z
ASDFGHJK

12345678
1234567A-Z
A-ZA-ZA-ZA-ZA-ZA-ZA-ZA-Z
ASDFGHJK