verekia/js-stack-from-scratch

JavaScript Stack from Scratch is a step-by-step written tutorial that teaches you how to assemble a modern JavaScript web application from the ground up, manually connecting all the individual tools rather than relying on a pre-made starter template. The goal is to give you a deep understanding of how the tools fit together. The tutorial walks through setting up the full development chain: Node.js and Yarn (the runtime and package manager), Babel (which translates modern JavaScript into code that older browsers can understand), ESLint (a code quality checker), Flow (a type checker), Jest (a testing framework), Express (a web server), Webpack (a bundler that combines many files into one), React (a UI library), Redux (a state management pattern), React Router (for navigating between pages), Socket.IO (for real-time communication), Bootstrap and JSS (for styling), and finally Travis, Coveralls, and Heroku (for automated testing and deployment). Each chapter adds one layer, explaining why it is needed and how to wire it to the previous ones. The tutorial emphasizes understanding over convenience. As the author notes, tools like create-react-app can get a React project running quickly with pre-made configuration, but this tutorial deliberately skips that shortcut so you can see every piece. You would use this tutorial if you are a developer who has JavaScript basics but wants to understand how professional web application toolchains are assembled, without having things magically configured for you. The tutorial was last updated in May 2017, so some APIs have changed slightly, but the author notes 95% remains valid.