Discover published sets by community

Matches three or more consecutive 'a's.

Matches exactly three consecutive 'a's.

Matches any word character (alphanumeric plus underscore), equivalent to [A-Za-z0-9_].

Matches any string that ends with 'abc'.

Matches any single character that is not 'a', 'b', or 'c'.

Matches one or more of 'a' followed by 'b'.

Matches any whitespace character (spaces, tabs, line breaks).

Matches any string that starts with 'abc'.

Matches any string containing 'a', any character, then 'b'.

Matches either 'a' or 'b'.

Matches the exact sequence 'abc' and captures it as a group.

Matches between two and four consecutive 'a's.

Matches any single character from the set: 'a', 'b', or 'c'.

Matches zero or one of 'a' followed by 'b'.

Matches any digit, equivalent to [0-9].

Matches a word boundary (the position between a word character and a non-word character).