inheritance.js

var A = Backbone.Model.extend({
  constructor: function(){
    console.log('hello');
    /* init */
  }
});


var B = A.extend({
  constructor : function(){
    A.call(this);
    this.init();
  },
  
  init : function(){
    console.log("don't want this in called in C");
  },
  
  doWant : function(){
    console.log('hello');
  }
});

var C = B.extend({
  constructor : function(){
    A.call(this);
    this.doWant();
  }
});