React itself is just the view. You can replace your template language without redoing everything if you want. Khan Academy, for example, still has some Backbone

React itself is just the view. You can replace your template language without redoing everything if you want. Khan Academy, for example, still has some Backbone views that render with React. We also have some Handlebars templates that we haven't converted over yet. That's all peacefully coexisting, though we'd love it if all of our views were React and more of our data handling was just pure functions.