Check if a Buffer/Uint8Array is EPUB
$ npm install is-epub
import readChunk from 'read-chunk';
import isEpub from 'is-epub';
const buffer = readChunk.sync('unicorn.epub', 0, 58);
isEpub(buffer);
//=> trueimport isEpub from 'is-epub';
const xhr = new XMLHttpRequest();
xhr.open('GET', 'unicorn.epub');
xhr.responseType = 'arraybuffer';
xhr.onload = () => {
isEpub(new Uint8Array(this.response));
//=> true
};
xhr.send();Accepts a Buffer (Node.js) or Uint8Array.
It only needs the first 58 bytes.
- file-type - Detect the file type of a Buffer/Uint8Array