DevToolkit
Secure, Client-Side Utilities for Developers.
Diff Checker
Red: Removed | Green: Added
Cheatsheet
. Any character except newline
\w Word character (a-z, 0-9, _)
\d Digit (0-9)
\s Whitespace
[abc] Any of a, b, or c
[^abc] Not a, b, or c
* 0 or more
+ 1 or more
? 0 or 1
^ Start of string
$ End of string