Deploying JavaScript Applications

[1] only HTML, JavaScript, CSS
- static host (does NOT execute server-side code) suffices
- server needs to host and provide HTML, JS, CSS assets
- example services: AWS S3, Firebase Hosting ...
[2] server-side code (Node.js)
- need dynamic host (able to execute server-side Node.js)
- server needs to host and execute files (server-side)
- example services: AWS Elatic Beanstalk, Heroku ...

Types of Websites

you can build different kinds of websites or web apps
3 major types:
- Static Websites (just HTML + CSS + JS)
- Single-Page-Applications (SPAs, HTML + CSS + JS with only one HTML page being served, client-side JS is used to re-render the page dynamically)
- Dynamic/Server-side rendered Web Applications: Websites where the HTML pages are created dynamically on the server (e.g. via templating engines like EJS).
more details: https://academind.com/learn/web-dev/dynamic-vs-static-vs-spa
when deploying such websites, it's important to understand that sites with NO server-side code (i.e. Static Websites and SPAs), required only a static host (e.g. AWS S3, Firebase Hosting)
pages where HTML is generated dynamically on the server require a host that is capable of executing the server-side code (i.e. a server that supports NodeJS, PHP or whatever language is being used)