Regular Expressions 101

^start of line

Non-Capturing Group(?:10|[0-9])

1st Alternative10

10the literal text 10

2nd Alternative[0-9]

Character Class[0-9]

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

Character Class[A-J]

A-Jone character from A (65₁₀) to J (74₁₀) (case sensitive)

Non-Capturing Group(?:10|[1-9])

1st Alternative10

10the literal text 10

2nd Alternative[1-9]

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

$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

^(?:10|[0-9])[A-J](?:10|[1-9])$

New

0A1
10J10
6A10
1B0
11A5
1H11
3Q8