Question: In my backbone app I load 3 Collections and I bind the "reset" event at the render function. So, in this way, when I fetch the Collections, I print the various results, but not simultaneously.

I would use the jquery deferred methods ($.when, $.then) to print all simultaneously, how to do this if I use the "bind events" on the views?

this is the code:

Router:

```
App.Routers.test1 = Backbone.Router.extend({  

    routes: {       
        "/test" : "test"        
    },

    initialize: function() {                            
        // Models
        this.Models_1 =     new App.Collections.coll_1;     
        this.Models_2 =     new App.Collections.coll_2;
        this.Models_3 =     new App.Collections.coll_3;

        // Views
        this.View_1 =       new App.Views.view_1( {model: this.Models_1} );
        this.View_2 =       new App.Views.view_2( {model: this.Models_2} );
        this.View_3 =       new App.Views.view_3( {model: this.Models_3} );         
    },

    test: function() { 
        $.when(

            this.Models_1.fetch(),
            this.Models_2.fetch(),
            this.Models_3.fetch()

        ).then(function() {

            // ?????????????????????????

            //  What should I do here?

            // ?????????????????????????

        });
    }

});

```

View 1:

```
App.Views.view_1 = Backbone.View.extend({

    initialize: function() {
        _.bindAll(this, 'render');
        this.model.bind('reset', this.render);
    },

    render: function() {

        // print the data...

    }

}); 

```

Answer: 
```
test: function() { 
    $.when(
        this.Models_1.fetch({silent: YES}), // silent will prevent triggering any events on reset or add
        this.Models_2.fetch({silent: YES}),
        this.Models_3.fetch({silent: YES})
    ).then(_.bind(function() {
        this.Models_1.trigger('reset'); // manually trigger events in sequence you want
        this.Models_3.trigger('reset');
        this.Models_2.trigger('reset');
    }, this));
}

```
Not sure where you are going with your deferred events. Backbone already has a way to do this.

In your view, bind the event "refresh" from the collection to the view render function. Whenever you will call fetch on the collection, the refresh event will be triggered and your view rerendered.