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 changevar usableCountries = id: 1 name: "United States" id: 2 name: "Canada" id: 3 name: "England" ;var usableCountriesImmutable = usableCountries; usableCountriesImmutable; // 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 changevar rectangle = color: "red" width: 7 height: 5 area: 35; rectangle; // This will throw an error!
Requirements
- Backbone 1.0.0 - 1.1.2
- Underscore 1.4.4 - 1.7.0