Package Exports
- image-type
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 (image-type) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
image-type 
Detect the image type of a Buffer/Uint8Array
Install
$ npm install --save image-type$ bower install --save image-type$ component install sindresorhus/image-typeUsage
Node.js
var readChunk = require('read-chunk'); // npm install read-chunk
var imageType = require('image-type');
var buffer = readChunk('unicorn.png', 0, 12);
imageType(buffer);
//=> pngBrowser
var xhr = new XMLHttpRequest();
xhr.open('GET', 'unicorn.png');
xhr.responseType = 'arraybuffer';
xhr.onload = function () {
imageType(new Uint8Array(this.response));
//=> png
};
xhr.send();API
imageType(buffer)
Returns: png, jpg, gif, webp, tif, bmp, jxr, psd, false
buffer
Type: buffer, uint8array
Accepts a Buffer (Node.js) or Uint8Array.
It only needs the first 12 bytes.
CLI
$ npm install --global image-type$ image-type --help
Usage
$ cat <filename> | image-type
$ image-type <filename>
Example
$ cat unicorn.png | image-type
pngLicense
MIT © Sindre Sorhus