Node.js Events, Streams & Buffers Explained | Node.js Course #4

Node.js Events, Streams & Buffers Explained – Lecture 4 of the Node.js & Express Full Course, a free Node.js and Express.js tutorial for beginners. Learn Node.js streams, EventEmitter, Node.js buffers with hands-on code examples for backend JavaScript development. Lecture 4 explains three ideas at the heart of Node.js: the EventEmitter pattern, Buffers for raw binary data, and Streams for processing large data piece by piece. We finish by copying and compressing a large file with stream.pipeline using almost no memory. What you'll learn • EventEmitter: on, once, emit, and the error event • Buffers: bytes, encodings, and toString • Readable and writable streams • Backpressure and stream.pipeline • Compressing a big file with zlib Chapters 00:00 Intro 00:49 EventEmitter 02:11 Buffers 03:32 Readable and writable streams 04:59 pipeline and backpressure 06:22 Streams in an HTTP server 07:00 Recap 07:36 Next: raw HTTP server Links Altered or synthetic content: The presenter visuals and narration in this video are AI-generated/AI-assisted from the instructor's own photo and an original teaching script. All code, diagrams and teaching content are original. #NodeJS #ExpressJS #NodeJsStreams