Compute MD5 of files in the background using web workers!
Web Worker is a browser technology that allow some JavaScript code to be executed in the background, and very likely in another thread.
This library allows you to compute the MD5 hash in the background without blocking the user interface.
The MD5 computation in this library uses spark-md5.
FileWorker is used to read files and compute MD5 in the background.
Step 1: Installation
You can download the latest release for browser and import it in HTML.
<script src="md5-webworker.min.js"></script>Or using NPM if you use webpack or TypeScript. This package is available on NPM called file-worker as well.
npm install md5-webworker --save-devTo use this package in JavaScript, you can require it
var md5 = require("md5-webworker");or import it.
import md5 from "md5-webworker";Because this library is written in TypeScript, if you are using an editor like WebStorm, you shall be able to get the handy auto-completion.
Step 2: Use it
Just pass in the File object to the global function
(md5_webworker in the browser)
and get a promise of the MD5 hashed result in HEX.
In browser:
md5_webworker(file).then(function(md5hex) {
console.log(md5hex);
})In webpack or TypeScript project:
hex = await md5(file);ISC License
Copyright (c) 2017, MD5 WebWorker Authors
Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.