What are some alternatives?
When comparing AngularJS and Backbone.js, you can also consider the following products
Vue.js - Reactive Components for Modern Web Interfaces
ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Polymer - Polymer is a library that uses the latest web technologies to let you create custom HTML elements.
Aurelia - Next gen JS framework written with ES6 and ES7. Integrates with Web Components. No external dependencies except polyfills.