JS - one huge file or many small files? - where to draw a line?

Question

Is there a good rule of thumb as to how big (in size) a JS file should be - that if it grows bigger than this it\'s good idea to split it into smaller files?

Answer 1

The same size as any other languages (never more than a few hundred lines), and the concat and minify at runtime (using the Closure compiler or the Yahoo libs or whatnot) is what we do.