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backbone.freeze

0.1.11 • Public • Published

Build Status

backbone.freeze

Immutable Collections and Models for Backbone.js. Freeze is designed to hold collections/models that will never change during the lifespan of your JS.

Freeze follows the principle of Fail Loudly; when you attempt to modify a collection or model it will throw an error.

Installing

Freeze is available on npm bower as "backbone.freeze"

bower install backbone.freeze

OR

npm install backbone.freeze

Examples

Freeze.Collection:

// List of usable countries should never change
var usableCountries = [
    { id: 1, name: "United States" },
    { id: 2, name: "Canada" },
    { id: 3, name: "England" }
];
var usableCountriesImmutable = new Backbone.Freeze.Collection(usableCountries);
 
usableCountriesImmutable.add({ id: 4, name: "Mexico"}); // This will throw an error!

Freeze.Model:

// The description of a rectangle should never change after construction, or that would make area incorrect 
// TODO - make area calculate on change
var rectangle = new Backbone.Freeze.Model({
    color: "red",
    width: 7,
    height: 5,
    area: 35
});
 
rectangle.set('height', 10); // This will throw an error!

Requirements

  • Backbone 1.0.0 - 1.1.2
  • Underscore 1.4.4 - 1.7.0

install

npm i backbone.freeze

Downloadsweekly downloads

7

version

0.1.11

license

MIT

homepage

github.com

repository

Gitgithub

last publish

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