Regular Expressions 101

Pro

&extension=the literal text &extension= (case sensitive)

Group 1([^\s&]*)

Negated Character Class[^\s&]*

*matches any number of characters outside the set below:

\sany whitespace character

&the literal & (38₁₀ / 46₈ / 26₁₆)

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

&extension=([^\s&]*)

New

https://example.com/?gclid=something&extension=me-trying-stuff

https://example.com/?gclid=something&extension=me-trying-stuff