is-woff

Check if a Buffer/Uint8Array is a WOFF

Install

$ npm install --save is-woff

Usage

Node.js

var readChunk = require('read-chunk'); // npm install read-chunk
var isWoff = require('is-woff');
var buffer = readChunk.sync('font.woff', 0, 8);
 
isWoff(buffer);
//=> true

Browser

var xhr = new XMLHttpRequest();
xhr.open('GET', 'font.woff');
xhr.responseType = 'arraybuffer';
 
xhr.onload = function () {
    isWoff(new Uint8Array(this.response));
    //=> true
};
 
xhr.send();

API

isWoff(buffer)

Accepts a Buffer (Node.js) or Uint8Array.

It only needs the first 8 bytes.

Test

$ npm test

test file from Font-Awesome

License

MIT © junmer