What is the best way to pack JavaScript code without getting performance flaws?

Question

I am searching for a way to compress JavaScript code for the iPhone. Is there a way to avoid using a lot of CPU time on the small and rather slow device?

Answer 1

Use the YUI Compressor

Answer 2

Use JSMin and avoid packer which is really more CPU consuming and slower to "deflate"

Answer 3

I love ShrinkSafe. It interprets your code in Rhino, then it returns compressed code. Because it's operating on real interpreted code (instead of complex string evaluations) it will never munge code or fail to find differences between public and private variables.

It's a tool of excellent quality.