Backbone.js: How to get the index of a model in a Backbone Collection?

Question

Is there a way to find the index of a model within a collection?

Let\'s say in a view we have a model we\'re working on, could that model spit out it\'s index within the

Answer 1

yes, backbone provides access to many underscore.js methods on models and collections, including an indexOf method on collections. it also provides an at method like you've shown.

var index = this.collection.indexOf(this.model);
var modelAbove = this.collection.at(index-1);