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javascriptinheritancebackbone.jssuperclass

How to call the defaults method of parent model in backbone

I have created a ParentModel and few other models which extend ParentModel. Each ChildModel has some additional properties than ParentModel.

I want to call defaults method of ParentModel and get that JSON and add some additional properties and return the modified object from the defaults of ChildModel.

Here is my code:

var ParentModel = Backbone.Model.extend({
  defaults: function() {
    return {
      name: '',
      description: '',
      ruleType: '',
      creationDate: ''
    };
  }
});

var ChildModel = ParentModel.extend({
  defaults: function() {
    //Q: How to get the defaults from ParentModel and add one more property to json
  }
});

var c = new ChildModel({});

But I am unable to figure out How to call the defaults method of the class it is extending (ParentModel) ?

Solution

  • _.extend({extraProps:here}, ParentModel.prototype.defaults)