Skip to content

Instantly share code, notes, and snippets.

@benzittlau
Created February 4, 2013 22:17
Show Gist options
  • Save benzittlau/4710231 to your computer and use it in GitHub Desktop.
Save benzittlau/4710231 to your computer and use it in GitHub Desktop.
Regex expressions that will never match anything
/(?!x)x/
/a^/
/$a/
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment