Comment by erjiang

Here is an example of trampolining in a Scheme interpreter I wrote in JavaScript: https://github.com/erjiang/foxscheme/blob/master/src/system/...

This way, interesting Scheme programs can be written without using the small JavaScript stack.

It uses an infinite loop that's broken out of by throwing an exception. There are also some other tricks that it uses to allow other things to happen on the page while it runs your program.