Closure Library 
This is Medium's fork of the Google Closure Library.
We try to keep it reasonably up to date, but only after testing that it is compatible with our products. There may occasionally be changes introduced to work around temporary issues or to try out fixes in preparation of upstream patches.
The package number reflects the date that we last merged the fork. We rebase our changes on top of origin/master, so that our modifications are always on top of the closure-library master changes.
Using
require('obvious-closure-library').bootstrap()
goog.require('goog.string.linkify')
goog.string.linkify.linkifyPlainText('Hello www.world.com')
NPM Info
The repository contains a lot of test files and demos, as such we include a
postinstall script that removes these files from the node_modules directory
when installed via NPM.
Contributing
This project isn't intended for external contribution, we suggest instead you send patches directly.
Original Readme
Closure Library is a powerful, low-level JavaScript library designed for building complex and scalable web applications. It is used by many Google web applications, such as Google Search, Gmail, Google Docs, Google+, Google Maps, and others.
For more information, visit the Google Developers or GitHub sites.
Download the latest stable version on our releases page.
Developers, please see the Generated API Documentation.
See also the goog.ui Demos
Using with Node.js
Install the official package from npm.
npm install google-closure-library
Require the package and use goog.require normally.
require("google-closure-library");
goog.require("goog.crypt.Sha1");
var sha1 = new goog.crypt.Sha1();
sha1.update("foobar");
var hash = sha1.digest();