Back in the terminal run these two commands: npm init -y: Creates an npm package in our project root; npm install babel-cli@6 babel-preset-react-app@3: Installs the packages we need to convert JSX to HTML; Because JSX isnt This is the quickest and easiest way to display your "Site Temporarily Unavailable" AJAX Intro AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples JS JSON