Regular Expressions 101

^start of line

Group 1(400022|642398|400023)

1st Alternative400022

400022the literal text 400022

2nd Alternative642398

642398the literal text 642398

3rd Alternative400023

400023the literal text 400023

\d{10}a digit, repeated exactly 10 times

$end of line

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

^(400022|642398|400023)\d{10}$

4000227890123456
6423987890123456
4000237890123456
4000247890123456
400023890123456
40002378901234564