One of the biggest strengths of Node.js is its ability to process large amounts of data efficiently. Today, I explored Streams , one of the most important concepts for backend development and a frequently asked topic in Node.js interviews. 💡 What are Streams? A Stream is a way to process data chunk by chunk instead of loading the entire file into memory. Instead of reading a 2 GB file at once, Node.js reads small chunks (typically 64 KB for fs.createReadStream() ), mak...