JavaScript: list of global variables in IE

Question

I am trying to get the instance name of my class.

The way I do this is a loop of all global objects and comparing it to this pointer.

It works in Chrome and FF, but in IE it is not. The problem is that global variables are not displayed in the window.

How can I iterate over global variables in IE?



PS: I know that it only works as long as there is only one instance, and I don't want to pass the instance name as a parameter.

        function myClass() 
        { 
            this.myName = function () 
            { 
                // search through the global object for a name that resolves to this object
                for (var name in this.global) 
                {
                    if (this.global[name] == this) 
                        return name 
                }
            } 
        }





        function myClass_chrome() 
        { 
            this.myName = function () 
            { 
                // search through the global object for a name that resolves to this object
                for (var name in window) 
                {
                    if (window[name] == this) 
                        return name ;
                }
            } ;
        }

// store the global object, which can be referred to as this at the top level, in a
// property on our prototype, so we can refer to it in our object methods
myClass.prototype.global = this
//myClass_IE.prototype.global = this
 // create a global variable referring to an object
// var myVar = new myClass()
var myVar = new myClass_chrome()
//var myVar = new myClass_IE()

 alert(myVar.myName() );// returns "myVar"

Answer 1

Best idea solved:

        function myClass_IE() 
        { 
            this.myName = function () 
            { 
                // search through the global object for a name that resolves to this object
                for (var i = 0; i < document.scripts.length; i++)
                {
                    var src = document.scripts[i].innerHTML ;
                    //document.write('script ' + i + ' = ' + document.scripts[i].innerHTML )


                    var idents = src.replace(/\W/g, ' ').replace(/(function|if|for|while|true|false|null|typeof|var|new|try|catch|return|prototype|this)/g, '').split(' ');
                    for(var j = 0; j < idents.length; j++) 
                    {
                        //var iden = String(idents[j]).trim();
                        var iden = String(idents[j]);
                        if (window[iden] == this) 
                        {
                            // http://mcarthurgfx.com/blog/article/iterating-global-variables-in-internet-explorer
                            // http://blog.stevenlevithan.com/archives/faster-trim-javascript
                            return iden;
                        }
                    }
                }
            } 
        }





        function myClass() 
        { 
            this.myName = function () 
            { 
                // search through the global object for a name that resolves to this object
                for (var name in this.global) 
                {
                    if (this.global[name] == this) 
                        return name 
                }
            } 
        }





        function myClass_chrome() 
        { 
            this.myName = function () 
            { 
                // search through the global object for a name that resolves to this object
                for (var name in window) 
                {
                    if (window[name] == this) 
                        return name ;
                    }
            } ;
        }

// store the global object, which can be referred to as this at the top level, in a
// property on our prototype, so we can refer to it in our object methods
myClass.prototype.global = this
//myClass_IE.prototype.global = this
// create a global variable referring to an object
// var myVar = new myClass()
//var myVar = new myClass_chrome()
var myVar = new myClass_IE()

alert(myVar.myName() );// returns "myVar"

Answer 2

IE , window.

var noEnum = true;       // won't show up in a for...in loop
window.willEnum = true;  // will show up in a for...in loop

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