Nothing. JavaScript works in several platforms, one of them being the browser. This is stuff specific to the browser and you can Google them while you code. If you start coding for servers, you won't have these variables.
Thank you Bartmr is a good point of view.
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Nothing. JavaScript works in several platforms, one of them being the browser. This is stuff specific to the browser and you can Google them while you code. If you start coding for servers, you won't have these variables.
Thank you Bartmr is a good point of view.