Click to insert the sample code at the current cursor location.
The output pane is just a div (called #output). There are helper functions log
and logn (print line) which will simply append some text - nothing to do with coffeescript.
and create functions with parameters.
You can iterate over lists and do nice
pattern matching stuff.
And oh-so-much more... there is a simple class system, useful while loop,
splats... I'll add more soon.