Can you inherit private functions in JavaScript? [closed]

Question

I am using a closure to create an object with private and public methods. It looks like this -

var Dog = (function() {
    function Dog() {}

    var size = 'big';

    var _privateSaySize = function() {
        return 'I am a ' + size + ' dog.';
    }

    Dog.prototype.publicSaySize = function() {
        return _privateSaySize();
    }

    return Dog;
})();

But now I would like to have an object that has only private functions and that is inherited by another object. But is this possible in JavaScript?

Answer 1

No, You can't.

JavaScript inheritance is prototype based, so You can "extend" only methods in prototype.