JavaScript: ? = If Else

This is not directly related to APEX however it will help if you use a lot of JavaScript

When I first started to develop web based applications and used JavaScript I came across some JS code with a ? in it. I didn't know what it was for and Googling "JavaScript ?" didn't help either. Here's a quick summary on how it works

Boolean ? true action : false action

So this:

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var x = 2; if (x > 1)   window.alert('True'); else   window.alert('False');

Becomes this:

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var x = 2; x>1 ? window.alert('True') : window.alert('False') ;