if you know the basics of adding javascript code into html documents now you think its time to get inot the inner working os the language. since variable are an important part of javascript coding, you will need to know as much as possible about what they are and why they are useful in your scripts. once you have an understaind of how varilable work and what they can do, you will be able to move on to other topics that build on the use of the various types of variables.


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