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Basic Concepts Node.js is a JavaScript runtime environment built on Chrome's V8 engine. It utilizes an event-driven, non-blocking I/O model that enables JavaScript to run on the server side. Official website: https://nodejs.org Code example: console.log("hello Node.js"); // 1. Navigate to the directory containing the js file // 2. Execute node ...

In the provided Node.js TCP server snippet, the socket.on('data', ...) callback receives a Buffer object. This data represents raw binary data sent from the client over the TCP connection. TCP is a stream-oriented protocol; there is no inherent message boundary. To extract discrete messages from this continuous byte stream, you must implement a ...

The Buffer class is a native global in Node.js designed for direct manipulation of binary data. Unlike browser-based JavaScript, which rarely deals with raw binary streams, Node.js operates as a server-side runtime where handling file systems, network packets, and I/O streams is standard. Buffer instances represent fixed-length memory allocatio ...

Introduction to Buffer Module When working with Node.js, handling binary data efficiently is crucial for I/O operations. The Buffer module provides a way to work with binary data directly, allowing you to manipulate raw memory outside of the V8 JavaScript engine's heap. Buffer objects are similar to arrays but store raw binary data in a fixed-s ...