badWords = ['ape', 'monkey', 'simian', 'gorilla', 'evolution']
--- pattern = new RegExp badWords.join('|'), 'i'
+++ pattern = new RegExp "/" + badWords.join('|') + "/", 'i'
or pattern = new RegExp '"' + badWords.join('|') + '"', 'i'
isAcceptable = (text) ->
!pattern.test text
show isAcceptable 'Mmmm, grapes.'
show isAcceptable 'No more of that monkeybusiness, now.'