code-golf.io is a new website that lets you write such solutions, have them scored in real-time, and compete with other users on per-hole, per-language, and overall leaderboards.
The project is very young and will grow to have more holes, more languages, and more features over time, but it's also open source, so feel free to help it along. Patches welcome!
So come one, come all, and either add to Perl 6's dominance, or knock Perl 6 off the top spot with your awesome Perl 5 one liners! JavaScript, PHP, Python, and Ruby are also supported for the heathens :-P
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