A Pen by Captain Anonymous.

Execute a function by specifying its name as a string.

Execute a function by specifying its name as a string.
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A [Pen](http://codepen.io/anon/pen/AgCDt) by [Anonasaurus Rex](http://codepen.io/anon) on [CodePen](http://codepen.io/).

[License](http://codepen.io/anon/pen/AgCDt/license).

script.js

function executeFunctionByName(functionName, context /*, args */) {
    var context = context || window,
        args = Array.prototype.slice.call(arguments, 2),
        namespaces = functionName.split("."),
        func = namespaces.pop();
  
    for (var i = 0; i < namespaces.length; i++) {
        context = context[namespaces[i]];
    }
  
    return context[func].apply(context, args);
}

var Foo = (function (window, document, undefined) {
    var me = {};
  
    me.Bar = function() {
      alert('baz');
    }

    return me;
})(window, document);

executeFunctionByName("Foo.Bar");