Regular Expressions 101

Group 1(^|,){1}

{1}repeats the group contents below exactly 1 time:

1st Alternative^

^start of line

2nd Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

12the literal text 12

Group 2($|,){1}

{1}repeats the group contents below exactly 1 time:

1st Alternative$

$end of line

2nd Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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

(^|,){1}12($|,){1}

1,12,21,131,234,28
45,121,35
12,24
32,12
12