[meat_fist]

And 'undefined is not a function' provides a full stack trace to the line of code causing the error. In this particular example, both planes crash, so it's not like anyone would say "But at least it crashed because of a seg fault."

Get off your high horse. What a ridiculous and ignorant comment.

[verelo]

Yes you're right they do provide a trace, however the trace can be misleading and difficult to understand. I attempted to clarify my position in the comments above. Sorry for any offence I caused.