javascript

[itwiz55]

All I know is that we are declaring a variable called maxX, and whatever is inside the brackets is called a condition. But I want explained to me what exactly the condition is. Please refer to the following snippet:var maxX = (document.all ? parseInt(document.body.offsetWidth) : parseInt(window.innerWidth)) - 50;Regards,Lucca.

[aspnetguy]

the snippet you have could also be written this way

var maxX;if(document.all)  maxX = parseInt(document.body.offsetWidth)else   maxX = parseInt(window.innerWidth)) - 50;

Basically using the ? shortens the code. Let me explain.(document.all ?) means is document.all a valid object/condition?parseInt(document.body.offsetWidth) : parseInt(window.innerWidth)) - 50; means yes : no so if document.all is valid then maxX = parseInt(document.body.offsetWidth) else it equals parseInt(window.innerWidth)) - 50. The other way I wrote it above takes up more lines of code but is easier to understand. The snippet you have is just optimized for minimal lines of code. They both do the same thing.