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JavaScript JavaScript and the DOM The Browser Environment The Browser's Global window Object

Sam Bartlett
Sam Bartlett
3,965 Points
Posted by Sam Bartlett
Sam Bartlett
3,965 Points

How were you able to access websites IP with "location.href" without saying "window.location.href" ?

How does the browser know what value you are accessing without the full call to the object?

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

The browser considers "window" to be the host object, and it is the default context for the program. This allows properties to be referenced without the prefix, but a "best practice" is to always use the prefix anyway. This protects your code against potential future browser changes, or when a local variable named "location" is created.

Sam Bartlett
Sam Bartlett
3,965 Points
Sam Bartlett
Sam Bartlett
3,965 Points

Gotcha. Thanks a lot Steven!