Fundamental of Node.JS - Internship Presentation - Week 7
What is Node.JS
Features of Node.JS
Node.JS Architecture
Core modules in Node.JS
Node.JS Installation
npm
Creating first node.js application
What is Node.js | Node.js Tutorial for Beginners | Node.js Modules | Node.js ...Edureka!
This Edureka "What is Node.js" tutorial will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi – Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
The document provides an introduction to building a simple web server in Node.js. It discusses organizing the code into modules, including a server module to start the web server, a routes module to route requests, and a request handlers module. It also covers basic concepts like using the http module to create a server, handling requests, and returning responses. The server currently returns the same "Hello World" response for all requests, and next steps involve routing requests to proper handlers to return the appropriate content based on the URL.
This is an introduction to NodeJS which is an open-source, cross-platform run-time environment for developing server-side Web Applications. It also discusses the implications of NodeJS in Internet of Things (IoT).
NodeJS is an open source, cross platform run time environment for server side and networking application. NodeJS is popular in development because front & back end side both uses JavaScript Code.
Node.js is an open source JavaScript runtime environment used to build real-time web applications. The document introduces Node.js, the npm package manager, the Express web application framework, and how to connect a Node.js application to MongoDB. Key points covered include Node.js being single-threaded and event-driven, using npm to install and use packages locally or globally, Express providing features for building web apps and APIs, and using modules like Mongoose to connect a Node app to MongoDB.
Server side rendering design and development. Review of main server side rendering parts and development process. Next.js React framework for SSR review.
Main contents:
What is SSR?
Prerendering
SSR for popular frameworks
Custom SSR with Node.js and React
SSR with Readux and Mobx state managers.
Next.js
Express is a web framework for Node.js that allows routing, middleware, templating and more. It is inspired by Sinatra and uses Connect as its middleware framework. Key features include routing, middleware support, template rendering with engines like Jade, and session handling with storage options. Errors can be handled via the app.error() method. Express provides a full-featured and easy to use web development framework for Node.js.
This document provides an introduction to NodeJS for beginners. It discusses what NodeJS is, how it uses non-blocking I/O and event-driven architecture, and how to set up NodeJS. It also covers global objects, modules, asynchronous vs synchronous code, core NodeJS modules like filesystem and events, and how to create a basic "Hello World" NodeJS application.
AngularJS is an MVC framework for building client-side web applications. It uses two-way data binding between models and views, dependency injection to decouple modules, and directives to extend HTML. Key features include routing for single-page applications, services for reusable logic, and tools for testing AJAX code. AngularJS provides standard directives, services, and routing capabilities to build complete applications in the browser.
Spring Boot is a framework for creating stand-alone, production-grade Spring based Applications that can be "just run". It provides starters for auto-configuration of common Spring and third-party libraries providing features like Thymeleaf, Spring Data JPA, Spring Security, and testing. It aims to remove boilerplate configuration and promote "convention over configuration" for quick development. The document then covers how to run a basic Spring Boot application, use Rest Controllers, Spring Data JPA, Spring Security, and testing. It also discusses deploying the application on a web server and customizing through properties files.
This Next.js slide is for the short introduction.
Next.js is a react framework for projection. Some people call it as a full stack react framework. Because we can write both client and server side code on it.
The document discusses Node.js and Express.js concepts for building web servers and applications. It includes examples of creating HTTP servers, routing requests, using middleware, handling errors, templating with views and layouts, and separating code into models and routes.
I talked about Vue.js at @agenciasomadev. In this talk I showed the basics about the Vue.js JavaScript Framework and it's simplicity. I hope you enjoy :)
Next.js is a React framework that allows building universal apps that work on both client and server. It addresses issues with SEO, performance, and code splitting in single-page apps. Next.js provides out-of-the-box features like server-side rendering, automatic code splitting, optimized builds, and more. It has a simple project structure where pages are individual React components and routing is file-based. While routing can be customized, the default routing only supports route paths that resolve to page files. Overall, Next.js streamlines universal React apps with its features and optimizations.
Slides from the NestJS MasterClass.
We learned how to build JavaScript server-side applications with NestJS - A progressive NodeJS framework built with TypeScript.
You can find the code on GitHub:
https://github.com/nirkaufman/task-manager
Vue.JS is a progressive JavaScript framework created by Evan You, formerly of Google. It was first released in 2014 and is growing in popularity as an alternative to AngularJS and React. Key features include declarative rendering, dependency tracking for automatic re-renders, and directives for DOM manipulation. Developers can get started by adding Vue to an HTML page or with single file components using tools like Webpack. The documentation provides many examples for building interfaces with directives, conditional rendering, forms, and more. While still smaller than communities for Angular and React, Vue has growing support from companies and an active ecosystem of libraries.
This is the slide deck from the popular "Introduction to Node.js" webinar with AMD and DevelopIntelligence, presented by Joshua McNeese. Watch our AMD Developer Central YouTube channel for the replay at https://www.youtube.com/user/AMDDevCentral.
This document provides an overview of the MEAN stack and its components. It discusses Node.js and its asynchronous and non-blocking architecture. It introduces MongoDB for data storage. It also covers Express, a web application framework for Node.js, and Angular 2, a front-end framework. Code examples and demos are provided for Node.js, Express, MongoDB integration, and building an Angular 2 application. The document is intended to educate developers on the MEAN stack technologies.
This document provides an overview and introduction to Node.js server-side JavaScript. It includes an agenda, background on Node.js and how it uses non-blocking I/O and event loops. Sample code is shown to demonstrate basic Node.js functionality like creating HTTP servers in just a few lines of code. Key concepts like modules and applicability are discussed. Real-world uses of Node.js in companies like LinkedIn and eBay are also mentioned.
Node.js is an open-source JavaScript runtime environment that allows building scalable server-side and networking applications. It uses asynchronous, event-driven, non-blocking I/O which makes it lightweight and efficient for data-intensive real-time applications that run across distributed devices. Some key features of Node.js include excellent support for building RESTful web services, real-time web applications, IoT applications and scaling to many users. It uses Google's V8 JavaScript engine to execute code outside of a browser.
1> What is node
2> What is node.js
3> Installation steps
4> Create first Node application
5> How it works ?
6> Why node is so popular ?
7> Where to use ?
8> Advantages
9> Disadvantages
10> Statistics
Node.js is an open-source server-side JavaScript runtime environment built on Chrome's V8 JavaScript engine. It provides an event-driven, non-blocking asynchronous I/O model to build highly scalable network applications. Node.js uses JavaScript for server-side development and can build various types of applications like web applications, REST APIs, real-time applications etc. It was created by Ryan Dahl in 2009 and has advantages like being open-source, lightweight, asynchronous and cross-platform. Node.js handles requests differently than traditional web servers by using a single thread event loop model. It also includes modules, functions and objects to work with files, streams, network etc.
Node.js is a JavaScript runtime built on Chrome's V8 engine that allows JavaScript to run outside of the browser. It has an event-driven, non-blocking I/O model that makes it suitable for building fast and scalable network applications. The document provides an introduction and overview of Node.js, including its uses, installation process, core features like modules and event-driven architecture, and popular frameworks like Express.js.
The document provides an introduction to server-side JavaScript using Node.js. It discusses Node.js basics, how it uses an event-driven and non-blocking model, and provides examples of building HTTP and TCP servers. It also covers Node.js modules, benchmarks, when to use/not use Node.js, and popular companies using Node.js in production.
The document discusses key concepts in Node.js including modules, using Node.js as a web server with HTTP, managing NPM packages, the event loop, event emitters, and streams/pipes. Modules allow code reuse and sharing functionality. Node.js can be used as a web server by creating an HTTP server to handle requests and responses. NPM is used to install, update, search for, and uninstall third-party packages. The event loop handles asynchronous events and callbacks in Node.js. Event emitters emit and handle events. Streams allow reading/writing files and piping data between streams.
This document provides an overview of Node.js including its history, key features, and common questions. Node.js is a JavaScript runtime environment for building server-side and networking applications. It is based on Google's V8 JavaScript engine and uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, especially for real-time applications that require high throughput and scalability. The Node.js package ecosystem and large developer community help make it a full-stack JavaScript platform for building fast and scalable network applications.
Node.js is an asynchronous event-driven JavaScript runtime that uses non-blocking I/O to build scalable network applications. It allows for the creation of web servers and networking tools using a event-driven, non-blocking I/O model rather than the traditional threaded model. Node.js is popular because it uses JavaScript and allows code reuse on both the server-side and client-side, offers high performance and scalability for real-time applications, and has a large passionate community supporting its use.
The document provides an overview of the Mastering Node.js course from Edureka. The course objectives include understanding Node.js development basics, using Node's package manager npm, developing server-side applications, creating RESTful APIs, and testing and debugging code. The document also discusses uses cases of Node.js in areas like server-side web applications, high scalability, and low memory consumption. It covers basics of Node.js like building a simple web server and using Socket.io for real-time communication. Node.js developers can create RESTful APIs, and must learn to debug and test their code.
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
Node.js is a server-side JavaScript platform that allows building scalable network applications quickly. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js runs on a single thread event loop, handles concurrent connections without blocking and takes advantage of asynchronous programming. It is commonly used for real-time applications that require two-way communication between client and server like chat, streaming etc.
This document provides an overview of server-side JavaScript using Node.js in 3 sentences or less:
Node.js allows for the development of server-side applications using JavaScript and non-blocking I/O. It introduces some theory around event loops and asynchronous programming in JavaScript. The document includes examples of building HTTP and TCP servers in Node.js and connecting to MongoDB, as well as when Node.js may and may not be suitable.
The server side the back-end app development of your product is arguably its most important part. Among all likely back-end app development skills to select from, Node.js is one of the basics. It involves the vast majority of modern business fields and real cases. Many smaller business and startups survey their lead and leverage the technology in developing web development.
Node.js is an event-driven, asynchronous JavaScript runtime that allows JavaScript to be used for server-side scripting. It uses an event loop model that maps events to callbacks to handle concurrent connections without blocking. This allows Node.js applications to scale to many users. Modules in Node.js follow the CommonJS standard and can export functions and objects to be used by other modules. The event emitter pattern is commonly used to handle asynchronous events. Node.js is well-suited for real-time applications with intensive I/O operations but may not be the best choice for CPU-intensive or enterprise applications.
Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Node.js is an open source command line tool built for the server side JavaScript code.
Create Restful Web Application With Node.js Express FrameworkEdureka!
Node.js uses JavaScript - a language known to millions of developers worldwide - thus giving it a much lower learning curve even for complete beginners. Using Node.js you can build simple Command Line programs or complex enterprise level web applications with equal ease. Node.js is an event-driven, server-side, asynchronous development platform with lightning speed execution. Node.js helps you to code the most complex functionalities in just a few lines of code.
Node.js is a JavaScript runtime environment built on Chrome's V8 JavaScript engine that allows JavaScript to run on the server side. It is lightweight, cross-platform, open source, and allows for asynchronous and event-driven programming. Some key features include being extremely fast, non-blocking I/O, single threaded, and highly scalable. It is well suited for real-time applications and APIs. Many large companies use Node.js including eBay, Microsoft, PayPal, and Yahoo.
This document provides an overview and introduction to Node.js. It covers the basics of Node.js including setting up the environment, creating a first application, using the Node Package Manager (NPM), and an introduction to key concepts like asynchronous programming with callbacks and events. The course appears to be targeted at web developers and teaches additional frameworks that can be used with Node.js like Express.js, MongoDB, and Angular.js.
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2. AGENDA - Fundamental of Node.JS
What is Node.JS
Features of Node.JS
Node.JS Architecture
Core modules in Node.JS
Node.JS Installation
npm
Creating first node.js application
Information Technology
DURING TRAINING PROGRAM - WEEKLY PRESENTATION
3. What is Node.JS
Node.js is an open-source, back-end JavaScript runtime server environment.
It uses Google Chrome V8 engine and executes code.
It is cross platform environment and can run on OS X, Microsoft Windows,
Linux,...
Provides an event driven architecture and non blocking I/O that is optimized
and scalable.
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4. Features of Node.JS
Asynchronous:
When request is made to server, instead of waiting for the request to
complete, server continues to process other requests.
When request processing completes, the response is sent to caller using
callback mechanism.
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Caller Recipient
Request
Response
Callback
Asynchronous Model
5. Features of Node.JS (Continue...)
Single Thread and Event Driven:
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Event Emitters
Event Queue
File System
Network
Process
Other
Event Loop
(Single - Threaded)
6. Features of Node.JS (Continue...)
Very Fast:
Being built on Google Chrome's V8 JavaScript Engine, Node.JS library is
very fast in code execution.
Single Threaded, but very highly scalable
Node.js highly scalable because event mechanism helps the server to
respond in non-blocking way
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7. Node.JS Architecture
Requests
Incoming requests can be blocking (complex) or
non-blocking (simple), depending upon the tasks
that a user wants to perform in a web application
Node.js Server
Node.js server is a server-side platform that takes
requests from users, processes those requests,
and returns responses to the corresponding users.
Event Queue
Event Queue in a Node.js server stores incoming
client requests and passes those requests
one-by-one into the Event Loop
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8. Node.JS Architecture (Continue...)
Thread Pool
Thread pool consists of all the threads available for
carrying out some tasks that might be required to
fulfill client requests
Event Loop
Event Loop indefinitely receives requests and
processes them, and then returns the responses to
corresponding clients
External Resources
External resources are required to deal with blocking
client requests. These resources can be for
computation, data storage, etc.
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9. Core modules in Node.JS
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Core
Module Description
http http module includes classes, methods and events to create Node.js http server.
url url module includes methods for URL resolution and parsing.
querystring querystring module includes methods to deal with query string.
path path module includes methods to deal with file paths.
fs fs module includes classes, methods, and events to work with file I/O.
util util module includes utility functions useful for programmers.
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1. Download from official
website node.org/download
2. Install it in your compatible
OS
3. After installation,
check installation version
> node --v
Installation
11. Information Technology
DURING TRAINING PROGRAM - WEEKLY PRESENTATION
Node Package Manager
A package in Node.js contains all
the files you need for a module.
Modules are JavaScript libraries
you can include in your project.
Downloading a package is very
easy. Open the command line
interface and tell NPM to
download the package you want.
> npm install express
We first have to use npm init , it
create package.jsonfile
npm
12. Creating first node.js program
1. Importing Module:
“require” is used to load a node.js modules
2. Creating Server:
Used to create web server object
Function (request,response) is called once
for every HTTP request to the server, so it’s
called the request handler
3. listen(<port_no>):
Bind the server instance for listening to a
particular port.
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var http = require(“http”);
var server = http.createServer(
function(request, response){
console.log(‘creating server object’);
}
);
server.listen(port,function(
){
console.log(‘server running
at http://localhost:3000 ’)
}
);
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To run node.js program
> node <nodejs_file>
Creating first node.js program (Continue...)
14. Thank You.
- Devang Garach
devanggarach.rao@gmail.com
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