is-bmp
Check if a Buffer/Uint8Array is a BMP image
Install
$ npm install is-bmp
Usage
Node.js
import {readChunk} from 'read-chunk';
import isBmp from 'is-bmp';
const buffer = await readChunk('unicorn.bmp', {length: 2});
isBmp(buffer);
//=> trueBrowser
const xhr = new XMLHttpRequest();
xhr.open('GET', 'unicorn.bmp');
xhr.responseType = 'arraybuffer';
xhr.onload = () => {
isBmp(new Uint8Array(this.response));
//=> true
};
xhr.send();API
isBmp(buffer)
Accepts a Buffer (Node.js) or Uint8Array.
It only needs the first 2 bytes.
Related
- file-type - Detect the file type of a Buffer/Uint8Array