Can a javascript variable be used from a different file -

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i making game , wanted know how use variable different file. ex:

file 1:

var js = "js";

file 2:

    alert(js);

i know seems kind of weird have reason doing it.

can javascript variable used different file?

yes, can... as long it's global variable.

this because of javascript files loaded shared global namespace.

in html, need include script declares variable first. otherwise complain variable undefined.

script1.js

var globalnumber = 10;

script2.js

alert(globalnumber); // alert "10"

index.html

<script src="script1.js"></script> <script src="script2.js"></script>

Today