Backbone Metal

Classes, Mixins, Errors, and more.

Usage

Classes

Classes are objects that you can instantiate with new Class(). You can also create a subclass from any existing class by calling its extend() method.

import {Class} from 'backbone-metal';

const MyClass = Class.extend({
  initialize(options) {
    console.log(`Created! ${options.greeting} ${options.subject}!`);
  }
});

let myClass = new MyClass({
  greeting: 'Hello',
  subject: 'World'
});
// >> Created! Hello World!

Mixins

When working with multiple classes, sometimes you want to share functionality between them. You can easily do this by creating a new Mixin and adding it to all the classes that need it.

import {Mixin, Class} from 'backbone-metal';

const MyMixin = new Mixin({
  alert(message) {
    console.log(`Alert! ${message}`);
  }
});

const MyClass = Class.extend({
  initialize() {
    this.alert('You have successfully used a Mixin!');
  }
});

MyClass.mixin(MyMixin);

let myClass = new MyClass();
// >> Alert! You have successfully used a Mixin!

Super

When working with subclasses, sometimes you want to modify one of the parent's methods and then calling the parent method inside. You can easily do this by calling _super.

import {Class} from 'backbone-metal';

const FirstClass = Class.extend({
  initialize() {
    console.log('First Class checking in!');
  }
});

const SecondClass = FirstClass.extend({
  initialize() {
    this._super();
    console.log('Second Class checking in!');
  }
});

let secondClass = new SecondClass();
// >> First Class checking in!
// >> Second Class checking in!

Contributing

Getting Started

Fork and clone this repo.

git clone [email protected]:marionettejs/backbone-metal.git && cd backbone-metal

Make sure Node.js and npm are installed.

npm install

Running Tests

npm test

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© 2014 James Kyle. Distributed under ISC license.