Javascript function with prototype within parent function prototype

Question

Is this even possible?

function foo() {
    // do stuff
}
foo.prototype = {
    // stuff...
    bar: function() {
        // do some things with this, where this refers to foo
    },
    bar.prototype: {
        // set some definitions for bar to work with.
        // Where does "this" go and what does it refer to?
    }
}

Answer 1

No. You'd need to use

function bar() {...}
bar.prototype = {...};
function foo() {...}
foo.prototype.bar = bar;

Although this won't work. There is no reason to put the bar constructor on foo s prototype, because when instantiating bar objects by using new ((new foo()).bar)() , there will be no reference to the foo instance. You could equally use new foo.prototype.bar() .