What is CDNJS. How it useful for websites.

CDNJS is a library repository which hosted on cloudflare.com. It’s freely available CDN for common Javascript and CSS libraries. Such type of system mostly known as CDN (Content Delivery Network).

Thomas Davis and Ryan Kirkman created cdnjs, Drew Freyling and Peter Dave are maintainers.
CDNJS host mostly known production ready versions of JavaScript/CSS library. CDNJS also support Beta version on their platform with the help of npm/git.
How it useful for websites.

The goal of a CDN (Content Delivery Network) is to deliver content easily to end-users with high availability and high performance.  CDN improve websites performance when sites use CDN library because websites no need to download again if CDN library already download by other sites.

Example of jquery CDNJS CDN path
jquery   - https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js

Official site - http://cdnjs.com/
Tags: CDN, CDNJS, cloudflare, CSS, JS.
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