This is the code needed to load an object from eZ Publish with javascript, thanks to Backbone.js

ezbackbone.coffee

eZContentObject = Backbone.Model.extend

  urlRoot:
    $.ez.url + 'call/ezjscnode::load::ezobject_'

  url:
    () -> @urlRoot + @get 'id'

  parse:
    (response) -> response.content

  sync:
    (method, model, options) ->
      if method is "read"
        Backbone.sync method, model, options
      else
        console.error "The method #{method} is not yet implemented"

ezbackbone.js

var eZContentObject = Backbone.Model.extend({
  urlRoot: jQuery.ez.url + 'call/ezjscnode::load::ezobject_',
  url: function() {
    return this.urlRoot + this.get('id');
  },
  parse: function(response) {
    return response.content;
  },
  sync: function(method, model, options) {
    if (method === "read") {
      return Backbone.sync(method, model, options);
    } else {
      return console.error("The method " + method + " is not yet implemented");
    }
  }
});

sample.js

var object = new eZContentObject({'id':1});

object.fetch();

var name = object.get('name');

ezjscore doesn't provide a single query to get all data of an object. Sometimes we will need several queries, then using urlRoot is not the best way... It's better to override the sync method for each type of object.