Javascript Dynamic Function Call with Name

Question

So I have the following pseudo Javascript code:

var Class = (function(window, document, $) {
    function meth_1()
    {
        //some code
    }

    function meth_2()
    {
        //some code
    }

    function meth_3()
    {
        //some code
    }

    function meth_4()
    {
        //some code to call other three functions dynamically
    }

    Class = {
        meth_1: meth_1,
        meth_2: meth_2,
        meth_3: meth_3,
        meth_4: meth_4
    };
    return Class;

})(window, document, jQuery);

In the meth_4 function, I want to call the other 3 functions dynamically by passing the function name as a string. How can I do this?!

In this related StackOverflow question, the answer provides a solution to how this could be done in window scope i.e. window[function_name](). However, I'd like to know how I can do it in my particular circumstance.

Thanks.

EDIT

The answer I selected works ok. You could also do the following:

var Class = (function(window, document, $) {
    var meth_func = {
        meth_1: function(){/**your code**/},
        meth_2: function(){/**your code**/},
        meth_3: function(){/**your code**/}            
    }

    function meth_4(func_name)
    {
        meth_func[func_name]();
    }

    Class = {
        meth_4: meth_4
    };
    return Class;

})(window, document, jQuery);

This would probably work better if you wanted to make private those three functions being called dynamically.

Answer 1

Since you want to call functions using bracket notation in object scope, not window scope, you can use this instead of window:

function meth_4()
{
    this["meth_1"]();
    this["meth_2"]();
    this["meth_3"]();
}