Difference in functions

In the thread:

http://developer.anscamobile.com/forum/2010/10/01/essential-mac-apps-corona-development#comment-7016

jonbeebe and MikeHart mention that there are two ways to declare functions but that one of them provides a speed advantage when the function is called…

local myFunction = function()

local function myFunction()

Could someone explain which is which, please? I’ve looked around the various links and docs here and elsewhere and not found the answer. Maybe I’m not googling hard enough (but I am at work…)

Thanks,

Matt. [import]uid: 8271 topic_id: 2690 reply_id: 302690[/import]