Accessing parent class in Backbone

I need to call the initialize method of the parent class, from inside the inherited MyModel-class, instead of completely overwriting it as I am doing today.

How could I do this?

Here's what my code looks right now:

BaseModel = Backbone.Model.extend({
    initialize: function(attributes, options) {
        // Do parent stuff stuff
    }
});

MyModel = BaseModel.extend({
    initialize: function() {
        // Invoke BaseModel.initialize();
        // Continue doing specific stuff for this child-class.
    },
});

Solution 1:

Try

MyModel = BaseModel.extend({
    initialize: function() {
        BaseModel.prototype.initialize.apply(this, arguments);
        // Continue doing specific stuff for this child-class.
    },
});

Solution 2:

MyModel = BaseModel.extend({
    initialize: function() {
        MyModel.__super__.initialize.apply(this, arguments);
        // Continue doing specific stuff for this child-class.
    },
});

Solution 3:

This worked for me, when I was trying to inherit among my models:

MyModel.prototype.initialize.call(this, options);

Referenced from http://documentcloud.github.com/backbone/#Model-extend

Thanks.