How to pass variable from one Javascript to another Javascript file [duplicate]

Question

I tried the following, trying to pass a variable from one JavaScript file to another JavaScript variable. My first JavaScript file:

var x = "sachin";

My other JavaScript file can't access that x variable value. How do I solve this? I can access that x variable and same value in another file.

Answer 1

A variable in global scope can be access from all javascript file.
Your first js file

  //first.js file
    var globalVariable={
       x: 'sachin'
    };

And your second js file

    //second.js file
    alert(globalVariable.x);

And in html page add-

<script type="text/javascript" src="first.js"></script> 
<script type="text/javascript" src="second.js"></script> 

Answer 2

see about local and global variables for more info. http://www.w3schools.com/js/js_scope.asp.

Make sure your var X is not inside a function and that your file is load in the correct order.

<script src="file1.js"><script> //declare var x=1 here
<script src="file2.js"><script> // you can access x from here.

Answer 3

I'm going to assume that you're running JavaScript in the browser. The order in which you include these files matters. If your script tags are in the wrong order, like...

<script src="file2.js"></script>
<script src="file1.js"></script>

If xis defined in file1, you can't use it in file2. file2 loads and runs first.