With Backbone.js I've got a collection set up with a comparator function. It's nicely sorting the models, but I'd like to reverse the order.
How can I sort the models in descending order rather than ascending?
Well, you can return negative values from comparator. If we take, for example, the example from Backbone's site and want to reverse the order, it will look like this:
var Chapter = Backbone.Model;
var chapters = new Backbone.Collection;
chapters.comparator = function(chapter) {
return -chapter.get(page); // Note the minus!
};
chapters.add(new Chapter({page: 9, title: The End}));
chapters.add(new Chapter({page: 5, title: The Middle}));
chapters.add(new Chapter({page: 1, title: The Beginning}));
alert(chapters.pluck('title'));
