CODEWITHSUNDEEP
javascript
Rockj
Rockj

Reputation: 101

How to access to a variable defined outside strict context?

Suppose I have two javascript files:

  1. Master.js: contains variable initialization and load the child.js file
  2. Child.js: contains a specific set of function

The content of Master.js is this:

<script src="child.js"></script>

<script>
    var GlobalVariables = {
        'baseUrl": "localhost"
    };

    $(document).ready(function() {
        Child.initialize(true);
    });
</script>

as you cans see the Master.js file load the Child.js file and also create a GlobalVariables which I need to use in Child.

This is what I done so far in Child.js:

window.Child = window.Child || {};

(function (exports){
   "use strict";

   exports.GlobalVariables= {};

   exports.initialize = function (bindEventHandlers) {
       bindEventHandlers = bindEventHandlers || true;

       exports.GlobalVariables= GlobalVariables;
   }

   var label = $('#someLabel').html(GlobalVariables.baseUrl);

I defined the variable GlobalVariables also using exports., but I can access to it using GlobalVariables.baseUrl only in the initialize function, in the label I get:

Uncaught ReferenceError: GlobalVariables is not defined

What I did wrong?

UPDATE

Ok, thanks to @Quentin answer I was able to apply the following edit to my code:

exports.initialize = function (bindEventHandlers) {
   bindEventHandlers = bindEventHandlers || true;

   if (bindEventHandlers) {
        _bindEventHandlers();
   }
}

function _bindEventHandlers() {
  var label = $('#someLabel').html(GlobalVariables.baseUrl);
}

Upvotes: 1

Views: 28

Answers (1)

Quentin
Quentin

Reputation: 943939

In child.js you attempt to read the value of GlobalVariables then in your inline script, you declare GlobalVariables and give it a value.

You have to declare the variable before you can read from it.

Upvotes: 1

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