Episode - 01 - Introduction to NodeJS

NodeJS

• official website says Run JS everywhere.
• Its a JS runtime built on chrome's v8 JS Engine.
• IT is a cross-platform means, it can run on any operating systems (windows, linux, MAC).
• NodeJS is open source and maintained by OpenJS foundation.
• NodeJS helps JS execute or run outside of the browser.
• We can not only create servers, we can create lot more thing from it.
• some keyword: event-driven architecture, non-blocking I/O (asynchronous I/O).

History of NodeJS

• NodeJS developed by Ryan Dahl in 2009 - 1st version of it.
• It is so popular even today.
• It also had controversy.
• There was a chance, where NodeJS could have been buried.
• To run a JS, we need JS engine.
• So, wherever u see JS code, there will JS engine to execute that JS code.
• When NodeJS developed function SpiderMonkey is JS engine used which is the Firefox JS engine.
• google chrome has a engine called v8.
• Firefox has SpiderMonkey.
• In just 2 days he, decied to start NodeJS with google v8 engine.
• later on nodejs build with spidermonkey also.
• But official doc, is using Google's v8 engine.
• Company name called Joyent, working on something similar to NodeJS.
• Earlier name of NodeJS was web.js.
• There was a apache server, which is kind of blocky.
• In 2010, NPM happend.
• In 2011, support for Windows os also came up, that was led by Joyent
  • MS.