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  • License MIT

Check if a Buffer/Uint8Array is a BMP image

Package Exports

  • is-bmp

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (is-bmp) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

is-bmp Build Status

Check if a Buffer/Uint8Array is a BMP image

Used by image-type.

Install

$ npm install --save is-bmp

Usage

Node.js
var readChunk = require('read-chunk'); // npm install read-chunk
var isBmp = require('is-bmp');
var buffer = readChunk.sync('unicorn.bmp', 0, 2);

isBmp(buffer);
//=> true
Browser
var xhr = new XMLHttpRequest();
xhr.open('GET', 'unicorn.bmp');
xhr.responseType = 'arraybuffer';

xhr.onload = function () {
    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.

License

MIT © Sindre Sorhus