if (mounted) { Redux is very popular with React applications, but its in no way unique to React: there are bindings for nearly any popular framework. Gatsby builds the site, and its compiled to static HTML which can be deployed on any Web Server you want, like Netlify, AWS S3, GitHub Pages, regular hosting providers, PAAS and more. Fell in love with CSS over 20 years ago. As we already know, you control the execution of effects mainly with the dependency array. State: State information that will change, we need to utilize State. users.map( user => ( We have our usual imports but you will notice something peculiar. What does it mean when you read that React is declarative? In addition, you do not have to add the ref to the dependency array. An HTML page can add a module by using a