Question

So if I declare an object in Javascript like so:

var myhouse = {
    room: {
        bed: function() { return "sleep"; }
    }
}

I can call:

myhouse.room.bed();

Can I make a method that’s callable with just:

myhouse.room();

? I can’t just say:

var myhouse = {
    room: {
        function() { return "stuff"; },
        bed: function() { return "sleep"; }
    }
}

It’s invalid. So what am I missing? Is it even a good idea to do this?

Answer 1

You can’t do it with a single literal, you need an extra assignment to set a property on a function:

var myhouse = {
    room: function() { return "stuff"; }
};
myhouse.room.bed = function() { return "sleep"; };

To make it a single expression, you could either use a IEFE

var myhouse = {
    room: (function(){
        var room = room = function() { return "stuff"; }
        room.bed = function() { return "sleep"; };
        return room;
    })()
};

or the comma operator (horribly unreadable, but working):

var myhouse = {
    // using myhouse as an already declared variable
    room: (myhouse = function() {return "stuff";},
           myhouse.bed = function() {return "sleep";},
           myhouse)
};