NODE JS JAVASCRIPT Training IN Nepal

JavaScript’s rising popularity has brought with it a lot of changes, and the face of web development today is dramatically different. The things that we can do on the web nowadays with JavaScript running on the server, as well as in the browser, were hard to imagine just several years ago or were encapsulated within sandboxed environments like Flash or Java Applets.

Node.js is a packaged compilation of Google’s V8 JavaScript engine, the libuv platform abstraction layer, and a core library, which is itself primarily written in JavaScript.” Beyond that, it’s worth noting that Ryan Dahl, the creator of Node.js, was aiming to create real-time websites with push capability, “inspired by applications like Gmail”. In Node.js, he gave developers a tool for working in the non-blocking, event-driven I/O paradigm.

After over 20 years of stateless-web based on the stateless request-response paradigm, we finally have web applications with real-time, two-way connections.

Course Outline - Node JS Training

Course Objectives

Understand the JavaScript and technical concepts behind Node JS

Structure a Node application in modules
Understand and use the Event Emitter
Understand Buffers, Streams, and Pipes
Build a Web Server in Node and understand how it really works
Use npm and manage node packages
Build a web application and API more easily using Express
Connect to a SQL or Mongo database in Node

Understand how the MEAN stack works

Pre-requisite / Target Audience:

Basic Knowledge of JavaScript and OOPS

Knowledge in async programming will be added advantage

Introduction to Node JS

In this module, you learn What is Node JS and advantages of Node JS and How Node JS Works and the difference between the traditional web server and what are the limitations of the traditional web server modal.

Introduction

What is Node JS?
Advantages of Node JS

Traditional Web Server Model

js Process Model

Setup Dev Environment

In this chapter, you will learn about the tools required and steps to setup development environment to develop a Node.js application and to work with the REPL to work with the Console.

Install Node.js on Windows

Installing in mac os
Working in REPL
Node JS Console

Node JS Modules

In this chapter, you will know what is a module, functions and examples. And achieving modularity and separation of concern with the NodeJS Modules.

Functions

Buffer
Module
Module Types
Core Modules
Local Modules
Exports

Node Package Mananger

This deals with working with npm to install and update packages and Updating your package to the NPM and managing and updating your current Packages.

What is NPM

Installing Packages Locally
Adding dependency in package.json
Installing packages globally
Updating packages

Creating Web server

In this chapter we will learn creating web server, hadling GET, POST,PUT and Delete requests and listening to certain port numbers and handling routing with basic web server.

Creating web server

Handling http requests

Sending requests

File System

In this module, we will work with files, reading, writing, updating files, and the concept of chunks, buffers, and uploading files synchronously and asynchronously.

Fs.readFile

Writing a File
Writing a file asynchronously
Opening a file
Deleting a file
Other IO Operations

Debugging Node JS Application

In this chapter you will learn how to debug node js application. Debugging is a process of tracing the bugs and performance issues to optimize your code.

Core Node JS debugger

Debugging with Visual Studio

Events

In this chapter you work with the events in Node JS, and the significance of the events, writing your own events because Node is event driven framework.

EventEmitter class

Returning event emitter
Inhering events

Express.JS

In this chapter you will learn how to use express framework to create web applications. Express is the most popular framework to build efficient web applications with minimum coding.

Configuring routes

Working with express

Serving Static Resources

In this chapter you will learn how to serve static html pages to the browser, and serving other file formats and restricting certain files.

In this you will to serve static resources with built in middle ware.

Serving static files

Working with middle ware

Database connectivity

In this chapter you will learn how to connect to SQL Server and perform CRUD operations. It is like ADO.net for MS.NET applications and JDBC for java. We will use different Node JS modules to connect with database.

Connection string
Configuring
Working with select command
Updating records
Deleting records

Template Engines

In this chapter you learn how use template engines to perform 2 way databinding and appending dynamic data to the webpage and different view engines and their sytax.

Why Template Engine

What is Jade
What is vash
Example

Real-time Project

At the end of the course participants will be able to

Develop a web application which involves database operations.

Node js is a server-site platform built on Google chrome’s JavaScript Engine. This platform was developed by Ryan Dahl in 2009. Its latest version is V0.10.36. Node.js is an open source, cross-platform runtime environment to develop Server-site and network application. Node.js application is written in JS (JavaScript), and can be run within the node.js runtime on OS X, Linux, and Microsoft windows.

If you write front-end code, it shouldn’t be a sudden news for you that you could easily write web apps with Node.js, since both relay on JavaScript.

Why Node js Training?

Before starting why, here’s the formal definition given on official website.

&ldquo Node.js® is a JavaScript runtime built on Chrome’s V8 JavaScript engine. Node.js uses an event-driven non-blocking I/O model that makes it lightweight and efficient. Node.js’ package ecosystem, npm, is the largest ecosystem of open source libraries in the world.”

If you are a JavaScript developer or willing to learn scripting language, then this is the best option. Every time you switch your programming platform, you will definitely have some problem. Typically, Node.js and its ecosystem stay with JS on both front-end and back-end.

Just imagine a multi-threaded server that reads file saved on the server and sends it to the requesting browser. Ruby just tell the file system to read the file and return the content. Which slow-down the request-response operation. And here comes the Node.js, in node while the file

system is reading file in server, node uses idle time to handle other pending request. When the file system is done, it tells the node to take resource and send it to browser.

Its improved framework like React Native which let you to make mobile applications. This is a huge advantage now that everything you build will also work as mobile app. Which will surely help you in future if you want to monetize your web pages.

Another fantastic usage of Node.js is chatting system in websites. You can make your own chat system using Node.js.

Career opportunity in Node js

You could get a job specializing in backend programming using Node.js. You could start a career where your elementary language is JavaScript via node. You can even start your career as startup engineer where you can build your own portfolio and client may contact you to solve their problem.

Software Engineer - Node.js

Node.js
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21Nov
11
Rs. 15000

NODE JS JAVASCRIPT

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