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From the YUI message boards: Javascript Syntax Question

function(){}() ambiguous, not good
(function(){})() good
(function(){}()) good
1 + function(){}() good
a = function(){}() good

Store the time that the function was first run (eg: on page load) as the value for a:
a = function() { return new Date().getTime(); }();
alert(a);
Which is quite significant functionally from the below, which returns the time that a was last called:
a = function() { return new Date().getTime(); };
alert(a());
Update:
Caridy Patiño Mayea provides a nice page of examples

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In today’s economy, there are two kinds of companies that can be successful; those that outsource production and relentlessly reduce costs, and those who, rather than competing on cost, try to produce items of high value. Companies that bury their contact information are trying to compete on cost. Companies that put an 800 number on the front page of their website are trying to compete on value. There is very little middle ground.
I am a very cost-conscious person, I’m usually happy to buy something used and on eBay if it means savings. This usually results in me being out of luck if anything goes wrong. Which is why for certain items, having a company that will stand behind their product is very important.
I have an iNova x1 flashlight on my keychain. It’s a somewhat small LED light, made of aluminum, it takes one AA battery, and the thing that is most unique about it is that the focus on the light throws a tight beam with little “spillover” light for about as far as a 3D mag-light. It’s really an incredible tool, and is definitely worth $20 (I think I paid $20 for it).
Unfortunately however, it broke last week. It’s achilles’ heel is the end-cap, which makes the electrical connection with the battery. It’s activated either by pressing a button or by screwing it in tighter (like a mini-mag light), and this is what started failing.
Since it’s such a beautifully engineered light, obviously developed by people passionate about their work, I figured that the company that produced it might be responsive to my plight. I e-mailed and politely stated my situation, the specific product that I had purchased, the part that had failed, and my address. 8 hours later, someone from their sales department wrote me a very nice e-mail stating that she would be mailing me out a replacement today, free of charge.
I’ll definitely be buying their products in the future, and recommending them to anyone who will listen. This means you.
iNova

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