Backbone.js collection comparator sort by multiple fields?

Question

  this.col = Backbone.Collection.extend({
    model: M,
    comparator: function(item) {
      return item.get(\"level\");
    }
  });

This above c

Answer 1

Returning an array is not consistent if you need to sort descending and some ascending...

I created a small set of functions which can be used to return the relevant comparison integer back to Backbone Comparator function:

backbone-collection-multisort