How Readable Streams Work Internally in Node.js

Readable Streams in Node.js look simple on the surface… but internally, there’s a powerful buffering system working behind the scenes Node.js streams use: ✔ Internal Buffers ✔ read() mechanism ✔ Chunk-based processing to efficiently process huge amounts of data. Node.js does NOT load the entire file into memory Instead: It allocates an internal buffer Reads small chunks from source Pushes chunks into buffer Delivers chunks to consumers My Notes : in this lecture, we are going to study about how internal buffer created and of what size it hold. And What is read method of readStream. 1. Readable streams has a method called **read()**. 2. With Read Method, we are going to understand about **Internal Buffer**. 3. Read method initially return **null**. But useful, when we start loading data in our **internal buffer** of readStream. 4. A new internal buffer created in each event handler & when we consume it, destroyed automatically. And this cycle goes on until all data read operation done.