jashkenas/coffee-script — pull request #2311 by karlseguin (2012-05-09 11:19:56+00:00)
Title: Support for =~ and !~ mapping to [!]/second/.test(first)

Sorry if this is naive. I just did the minimum to get my two new tests to pass...which is probably missing a billion things.

Hopefully, if some one thinks this has real value, it might motivate them to pick it up.