When are you supposed to use escape instead of encodeURI / encodeURIComponent?

Question

When encoding a query string to be sent to a web server - when do you use escape() and when do you use encodeURI() or encodeURIComponent()

Answer 1

I've found that experimenting with the various methods is a good sanity check even after having a good handle of what their various uses and capabilities are.

Towards that end I have found this website extremely useful to confirm my suspicions that I am doing something appropriately. It has also proven useful for decoding an encodeURIComponent'ed string which can be rather challenging to interpret. A great bookmark to have:

http://www.the-art-of-web.com/javascript/escape/