regular expressions
Rubular is a Ruby regular expression editor that helps learning and testing your ruby regular expessions. I wish Rubular had been around 10 years ago.
Try out these regular expressions:
\d\d\w+
^\d\d\w+
\d\d\ ?\w+
\d\d\ \w+
using this test string:
You are 403 feet away from my 73 taco.
If you try to steal my 73taco whip you
82 times and brand you as the infamous
73taco stealer.