bindAll

autoBind function for Backbone.js

//this is a generic function which should be moved to a Baseclass of Backbone or a Backbone extension
autoBind = 
{
    autoBind: function () {
        var self = this;
        var funcs = _.functions(this.constructor.prototype);
        var protoFuncs = ['autoBind', 'constructor'].concat(
                _.functions(Backbone.Collection.prototype),
                _.functions(Backbone.Model.prototype));
                _.functions(Backbone.View.prototype));
        _.each(funcs, function(f){
            if(f.charAt(0) !=='_' && _.indexOf(protoFuncs, f) === -1)
            {
                self[f] = _.bind(self[f], self);
            }
        });
    }
}
_.extend (Backbone.Collection.prototype, autoBind);
_.extend (Backbone.Model.prototype, autoBind);
_.extend (Backbone.View.prototype, autoBind);

autoBind.js

var MovieView = Backbone.View.extend({
    initialize: function (args) {
        this.autoBind();
        this.model.bind('change:title', this.changeTitle);
        this.model.bind('change:name', this.changeName);
    },

    changeTitle: function () {
        this.$('.title').text(this.model.get('title'));
    },

    changeName: function () {
        this.$('.name').text(this.model.get('name'));
    },

    _doNotBindMe: function () {
        //this here is pointing to the caller
    }
})

bindAll.js

var MovieView = Backbone.View.extend({
    initialize: function (args) {
        _.bindAll(this, 'changeTitle', 'changeName');
        this.model.bind('change:title', this.changeTitle);
        this.model.bind('change:name', this.changeName);
    },

    changeTitle: function () {
        this.$('.title').text(this.model.get('title'));
    },

    changeName: function () {
        this.$('.name').text(this.model.get('name'));
    }
})