Regular Expressions 101

Pro

the the literal text the (case sensitive)

Group 1(big|small|biggest)

1st Alternativebig

bigthe literal text big (case sensitive)

2nd Alternativesmall

smallthe literal text small (case sensitive)

3rd Alternativebiggest

biggestthe literal text biggest (case sensitive)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 2(cat|dog|bird)

1st Alternativecat

catthe literal text cat (case sensitive)

2nd Alternativedog

dogthe literal text dog (case sensitive)

3rd Alternativebird

birdthe literal text bird (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

the (big|small|biggest) (cat|dog|bird)

New

the big dog
the small bird
the biggest dog
the small cat

the big dog
the small bird
the biggest dog
the small cat