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Why do I not have to use "window." every time?

Posted on 2014-07-17
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Last Modified: 2014-08-14
I have a global variable:
aa_pageNameTypeURL

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Should I use "window.'" every time I reference this variable? What are the pros/cons?
window.aa_pageNameTypeURL;

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Question by:894359
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leakim971 earned 2000 total points
ID: 40203501
<< window. >> make your variable global which mean accessible to everywhere in your page by any javascript code
if you are in a function and use << var aa_pageNameTypeURL = foo >>, aa_pageNameTypeURL is only available in the function.
Google about "javascript scope" to learn more
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