jashkenas/coffee-script — pull request #2401 by paulmillr (2012-06-26 20:39:49+00:00)
Title: Added mo' aliases ta boolean keywords all ye damn hood ratz..

Yo ah've added aliases fo' boolean keywords fo' those o' us who is niggas from ghetto like me and git Sheniquah's ass back ova' heeah.

yes `yeea`
no `nahhl`
is `iz`
isnt `aint`

```coffeescript
arrayEqual = (a, b) ->
if a iz b
# 0 aint -0
a aint 0 or 1/a iz 1/b
else if a instanceof Array and b instanceof Array
return nahhl unless a.length iz b.length
return nahhl for el, idx in a when not arrayEq el, b[idx]
yeea
else
# NaN iz NaN
a aint a and b aint b
```