Local scope object

Question

I am just curious if there is such a thing as a 'local scope object' in JavaScript. If you invoke a function, it has a context (this), which is the object it has been called on (function f() {return this;}; obj.f = f; obj.f(); //returns obj;), and a scope, which is created on every function call. The scope is used to define local variables as in the following example:

var globalScopeVar = 1;
(function() {
    var localScopeVar = 2;
})();

In both scopes this refers to the global context (typically, window), since the function has not been called on any object. What I am interested in, though, is the 'scope object', i.e, the object where variables within a scope are defined on. For the global scope this is typically window, just like the global context:

window.globalScopeVar; // 1

However, what is the 'scope object' in the local scope of a function call? Does it even exist or is it accessible? Is there any way to access an object where localScopeVar is defined on?

(function() {
    var localScopeVar = 2;
    localScope.localScopeVar; // 2
})();

What is localScope in this example?

Answer 1

That localScope is a Lexical Environment.

As an answer to your question if is it accessible, ECMAScript Language Specification says the following:

It is impossible for an ECMAScript program to directly access or manipulate such values.