extendable

Inheritance the Backbone way.

Installation

npm install extendable

Usage

Define your base class:

var extendable = require('extendable')
var _ = require('underscore')

function BaseClass(options) {
  ...
  this.initialize.apply(this, arguments)
  ...
}

BaseClass.inheritedClassMethod = function() {
  ...
}

_.extend(BaseClass.prototype, {

  initialize: function() {},

  doSomething: function() {
    ...
  },

  overrideMe: function() {}

})

BaseClass.extend = extendable

Then define your sub class:

var MyClass = BaseClass.extend({

  initialize: function(options) {
    ...
  },

  otherStuff: function() {
    ...
  },

  overrideMe: function() {
    ...
  }

}, {
  classMethod: function() {
    ...
  }
})

Use the sub class:

// create an instance
var mc = new MyClass({ prop: 'value' })

// execute inherited methods
mc.doSomething()

// execute overridden methods
mc.overrideMe()

// new methods
mc.otherStuff()

// class methods
MyClass.classMethod()

// inherited class methods
MyClass.inheritedClassMethod()