Creating Backbone models with immutable attributes
Backbone.Immutable is a Backbone plugin that helps you create models with immutable attributes. I find it very useful to use this for settings and in general, data that I don't want anybody to get their hands on.
In order to use Backbone.Immutable, you need to have Backbone and Underscore included in your project.
bower install backbone.immutable
or download it manually from here and hook it in your HTML.
<script src="/path/to/backbone.immutable.js" type="text/javascript"></script>Then you can instantiate the model, as following:
var model = new Backbone.Immutable(
username: 'Coyote';
});set - arguments: [ key, value ] {String, Number, Array or whatever you want, really}
Set a key to any value you want. You won't be able to change it, unless you refresh the page.
Example
model.set('username', 'Coyote');
model.set('username', 'Road Runner'); // logged "You're not supposed to change the values."get - arguments: [ key ] {String}
Returns the saved value for given key
Example
model.get('username');
> "Coyote"toJSON - arguments: ** no arguments **
Returns all attributes in a JSON dictionary
Example
model.toJSON()
> {name: "Coyote"}
model.set('email', 'example@example.com');
model.toJSON();
> {name: "Coyote", email: "example@example.com"}