inheritance.js

//That's your constructor
var BaseObject = function(eventObj){
  this._ev = $(eventObj || {});
}

//There it's the inheritance
BaseObject.prototype = Object.create(Object.prototype); 

//Put your methods there
BaseObject.prototype.on = function(){
  this._ev.on.apply(this._ev, arguments);
  return this;
}

BaseObject.prototype.off  = function(){
  this._ev.off.apply(this._ev, arguments);
  return this;
}

BaseObject.prototype.trigger = function(){
  this._ev.trigger.apply(this._ev, arguments);
  return this;
}

///////////////////////////////////////////////////////////////////////////////////

//Another constructor
var BaseView = function(tagName, attributes, content){
  //Base class constructor call
  BaseObject.call(
    this,
    domHelper.createElement(tagName || 'div', attributes, content)
  );
}

//Inherit from BaseObject
BaseView.prototype = Object.create(BaseObject.prototype);

//Methods
BaseView.prototype.$ = function(selector){
  return  selector 
          ? $(selector, this.el)
          : $(this.el);
}

BaseView.prototype.render = function(){
  return this;
}