Question

My application is accessing a third party external JavaScript file that I cannot alter.

Within the file is an object defined similarly to as follows:

object_1 = (function(){
    var object_1_var = 'object_1_var_value';
    return {
        obj_1_func: function() {
            console.log(object_1_var);
        }
    }
})(window);

I need to be able access the object_1_var within the object, but I’m struggling to access it.

object_1.v // returns undefined
object_1.obj_1_func() // returns the value via console, but I need to assign it to a var.

I have tried extending the object using as follows: (Using jQuerys $.extend())

object_2 = (function(){
    return {
        obj_2_func: function() {
            return object_1_var;
        }
    }
})(window);

$.extend(object_1, object_2);

var my_var = object_1.obj_2_func(); // returns 'Uncaught ReferenceError: object_1_var is not defined'

What can I do to be able to access object_1_var?

Answer 1

You will not be able to access the variable. It happens to be a private member. Private members of an object can be accessed only by its member functions.

Read this.