From JavaScript to Node.js: Understanding What Really Happens Behind the Scenes (Part 3)

Node.js utilizes a specific Module Resolution Algorithm to locate built-in and local modules via require(), a runtime feature rather than a JavaScript native. Every CommonJS module is processed through a hidden Module Wrapper Function before execution. Furthermore, Node.js prevents system freezing during file operations by routing requests through V8, Node APIs, C++ Bindings, and libuv to the operating system, enabling an asynchronous architecture that manages hardware communication without blocking the main thread.