Can Backbone render a collection in reverse order?

Question

I\'m using a Signalr hub to subscribe to events on the server. What an event is dispatched to a hub, its successfully adding the item to a Marionette CollectionView. This, in

Answer 1

As the BackBone doesn't support reverse iteration of the collection (and it's just waste of resources to reverse or worse sort the collection) the easiest and fastest approach is to use the for loop with decreasing index over models in the collection.

for (var i = collection.length - 1; i >= 0; i--) {
    var model = collection.models[i];

    // your logic
}

It's not that elegant as sorting or reversing the collection using Underscore but the performace is much better. Try to compare different loops here just to know what costs you to write foreach instead of classic for.