Question

I’ve got a Backbone Collection. How can I slice the collection, or at least truncate the list to a certain length?

Answer 1

Assuming that you have your collection defined and initialized and that you want to mutate the collection (change it in place) you have to do:

collection.reset(collection.first(n));

of you can use .last(n) to get last N elements.

If you just wanted to get the first n elements without modyfying the collection just do:

var models = collection.first(n);

Here is a list of all the underscore methods you can use directly on your collection.