Working with Files and Bytes

JS uses special structures for handling images, video, or network protocols.

1. ArrayBuffer

This is simply a chunk of memory filled with bytes. You cannot work with it directly. To " read " it, you need TypedArrays (Uint8Array, etc.).

2. Blob (Binary Large Object)

This is an object representing data as a file (an image, a PDF). Blobs are often used for uploading/downloading files.

const blob = new Blob(["Hello, world!"], {type: 'text/plain'});