Regular Expressions 101

Group 1(b.*?)?

?repeats the group contents below at most once:

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

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

applethe literal text apple (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(b.*?)?apple

New

>Matched
dolphin elephant apple star
dog cat apple banana

>Unmatched
map banana apple dog

>Only the first apple matched, others are unmatched.
map apple banana apple cat
map apple banana apple banana apple

>The first apple and the second apple matched, others are unmatched.
map apple dog apple banana apple banana apple