Regular Expressions 101

Positive Lookahead(?=.*[a-fA-F]+)

.*any character (except for line terminators), repeated any number of times

Character Class[a-fA-F]+

+matches at least one character from the set below:

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

A-Fone character from A (65₁₀) to F (70₁₀) (case sensitive)

Positive Lookahead(?=.*[0-9]+)

.*any character (except for line terminators), repeated any number of times

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Character Class[a-zA-Z0-9]{10}

{10}matches exactly 10 characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

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.

Search reference

Regular Expression

(?=.*[a-fA-F]+)(?=.*[0-9]+)[a-zA-Z0-9]{10}

New

111111111a
7777dddddd
9999999999
88888888A
88888888AAA
88888A
AAAAAAAAA

asdfasddad
bnmmnbamnb
8adfl9542a
ammmmmmmmm
mammmmmmmm
0mmmmmmmmm
m0ammmmmmm
on5pn0nmon
qqqq55511s
11111a1111
11111111111

Regular Expression

Extraction