execute a function by string name in a namespace without eval

gistfile1.js

// 'pojo' idiom for namespacing javascript
var namespace = {};

var x = 'fn';

namespace.fn = function() {
    console.log('fin');
}

// execute function by string name
var execute = function(context, name, args) {
    return context[name].apply(context, args);
};

//execute(namespace, x);

// attached to the string prototype
String.prototype.execute = function(context, args) {
    if (!context[this]){
        return false;
    }
    context[this].apply(context, args);
};

x.execute(namespace);

JavaScript idiom for namespacing before es6 / commonjs modules

Breaking all rules