Backbone sat right between the jQuery sprinkle and reactive frameworks era. It popularized a bunch of important concepts that quickly led to the next era: - st

Backbone sat right between the jQuery sprinkle and reactive frameworks era. It popularized a bunch of important concepts that quickly led to the next era: - storing data in JavaScript, not in DOM elements - separate models and views before JavaScript even had the class keyword - decoupling from your back-end through a RESTful API - templates that would be filled with data in the browser - client-side routing However, it was not in the same league as reactive frameworks like Angular.js or Ember. It was missing two big things, which destined it to be a bridge from the jQuery era to the present. - Reactivity that stretches to the DOM. Backbone's views had a `render` hook you had to implement that expected you to either replace the HTML wholesale or go fiddle with the DOM yourself. - Partials or Components. Backbone didn't support subviews at all.