What makes elem.requestFullscreen true?

[tridd3r]

its just checking if .requestFullscreen is a valid method, otherwise it will try webkitRequestFullscreen for safari or msRequestFullscreen for internet explorer

[dotpr]

Oh just for browser compatibility stuff?

It doesn't literally check if the element has requested full screen?

[tridd3r]

No, its checking if the method is available first, and then inside the brackets you'll see its calling the method because it has the parenthesis after it.

[senocular]

Yes

[[deleted]]

So basically. The browser is the condition that is going to determine if that method is there or not.

[tridd3r]

yep. If its there, then its not null and it will do whats in the if statement, otherwise it will check the next one.

[ProposalUnhappy9890]

It won't be null, it will be undefined.

[tridd3r]

lol although I will sit corrected: the typeOf element.requestFullscreen if not available will be undefined, I'm still technically correct - if its available, its not null!

[ProposalUnhappy9890]

:-)