Working with VS Code
Embedded web development tools inside the Web-Browser
Nice VS-Code extension to try which is called live-server to check files individually as HTML, CSS and JavaScript before moving completely to React.
web-frontend-poc-in-js is made to demonstrate a primitive example that justifies using React as a high level abstraction instead of simple functionalities from plain JavaScript.
In action: You are concerned with one tier ONLY of the architecture as mentioned before. Just check the web-frontend segment.