Take a tour down memory lane as we explore the JavaScript files and features added to each version of WordPress: from quicktags.js in version 1.0 to wp-api.js in 4.7. We’ll look at the JavaScript based features in today’s WordPress including media, the customizer, themes, plugins, revisions and the REST API client. We will learn when and why Backbone was introduced as a JavaScript framework for Core and why and how it is used extensively in core. Finally, we will learn about the exciting things happening now in the wider JavaScript community and in WordPress core that will shape the WordPress of tomorrow.