Node Js Fundamentals

Node Js Fundamentals

Node Js lets you take your JavaScript skills and utilize them on the server, just as you would other server-side languages such as PHP, .NET or Ruby. Node.js is a free, open source, and works on Windows, Mac, and Linux computers. It's easy to start using for a variety of projects and is also powerful enough to handle professional-grade web applications. Many of the new startup companies are using Node and the MEAN stack as their technology of choice. This course will give you an introductory look into why Node is so popular, and how you can start adding Node JS development to your skill set. 

• ·        Learning the difference in client-side JavaScript and server-side Node.js.
• ·        Learning ES6 features in Node.js.
• ·        Installing Node and NPM.
• ·        The package.json file.
• ·        Basics of Node Modules and Packages.
• ·        Using REPL Commands.
• ·        Streams and Sockets.
• ·        Promises.
• ·        Callbacks.
• ·        Arrow Functions.
• ·        Classes.
• ·        Events and Event Listeners.
• ·        Debugging Node Applications.
• ·        Other topics for future learning – Socket.io, Web Sockets, and so on.

Prerequisites:

Experience with HTML and CSS are required.

Experience using a modern IDE such as Sublime Text, Atom, or Visual Code is required.

Knowledge of JavaScript fundamentals is required – variables, functions, loops, arrays, if () statements, and object literals should all be familiar to you before taking this class.
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Node Js Overview

 Node JS  Overview

Node js, JavaScript has an interesting history – it hasn’t developed like most other languages; until recently, executing JavaScript meant embedding it in a web page for a browser to execute. A few things happened which radically hastened the rise in JavaScript as a reasonable server-side language:

AJAX and the Browser Wars have resulted in dramatic improvements in JavaScript runtime performance and high-quality developer tools.

Node.js built Process, File, and Network I/O APIs on top of Google’s V8 JavaScript engine, allowing command line programs and daemons to be built in JavaScript.

Node.js adds a friendly command line face to V8 and APIs that are conceptually similar to Ruby’s Event Machine library: all I/O is asynchronous and threads are unavailable to user code. Additionally, JavaScript is a prototype-based language, not object-oriented. This makes for a programming model that is radically different from what Ruby or Java developers are used to.

Node Js History

Node. Js

Node.js is a runtime environment for JavaScript that runs on the server. Node.js is an open source, cross-platform, and since its introduction in 2009, it got hugely popular and now plays a significant role in the web development scene. If GitHub stars are one popularity indication factor, having 46000+ stars means being very popular.

Node.js is built on top of the Google Chrome V8 JavaScript engine, and it’s mainly used to create web servers - but it’s not limited to that.

History of Node. Js

JavaScript is a programming language that was created at Netscape as a scripting tool to manipulate web pages inside their browser.This could create dynamic pages using server-side JavaScript. So the idea of server-side JavaScript was not introduced by Node.js, but it’s instead of old just like JavaScript - but at the time it was not successful.

One key factor that led to the rise of Node.js was timing. JavaScript since a few years was starting being considered a serious language, thanks for the “Web 2.0” applications that showed the world what a modern experience on the web could be like (think Google Maps or Gmail).

The JavaScript engines performance bar raised considerably thanks to the browser competition battle, which is still going strong. Development teams behind each major browser work hard every day to give us better performance, which is a huge win for JavaScript as a platform. V8, the engine that Node.js uses under the hood, is one of those and in particular it’s the Chrome JS engine.

But of course, Node.js is not popular just because of pure luck or timing. It introduced many innovative thinking on how to program in JavaScript on the server.