Node JS Certification Course

Learn Node.js by doing in this comprehensive immersive learning course

  • Amp up your Node.js skills and learn to code by actually coding
  • Understand rendering, middleware, routing, authentication and more with Express
  • Immersive learning with Cloud Labs, guided hands-on exercises and more
  • 400,000 + Professionals trained
  • 250 + Workshops every month
  • 100 + Countries and counting

Become a skilled Node.js developer

KnowledgeHut's Node.js online course takes you all the way from the basics of Node.js to writing and deploying a complete application using the Express framework. In this immersive learning Node.js program, you will understand various Node.js concepts with hands-on experience in building everything from command-line tools to web servers and more.  

..... Read more
Read less


  • 24 Hours of Live Instructor-Led Sessions

  • 120+ Hours of Hands-On with Cloud Labs

  • On-Demand Self-Paced Learning

  • Auto-Graded Assessments and Recall Quizzes

  • Capstone Projects and Assignments

  • Lifetime Access to Courseware

Why Node.js?


Node.js is an open-source, cross-platform JavaScript runtime environment. This means that the framework is highly accessible. Consequently, it is faster to deploy, is highly scalable and extremely comfortable to work with. It also has a giant open-source community and massive NPM repository (over 60,000 modules) - the largest and fastest-growing software registry in the world.

..... Read more
Read less

To gain in-demand Node.js skills, talk to our Learning Advisor today.

Contact Learning Advisor

The KnowledgeHut Advantage

The most effective project-based immersive learning experience

Immersive Learning

  • On-demand videos
  • Guided hands-on exercises
  • Auto-graded assessments and recall quizzes
  • Assignments and projects

Learn by Doing

  • Learn to code. By actually coding.
  • Get project-ready with work-like experiences.
  • Learn on the job, like devs in tech companies.

Cloud Labs

  • Access fully provisioned dev environment.
  • Virtual machine spinned up in minutes.
  • Write code right in your browser.


  • Get advanced learner insights.
  • Measure and track skills progress.
  • Identify areas to improve in.

Blended Learning

  • On-demand, self-paced learning anytime.
  • Code review sessions by experts.
  • Access to discussion forums, community groups.

Node JS Training Prerequisites

  • An Understanding of server-side development is a must  
  • Working knowledge of JavaScript at an intermediate level  

Who should attend this course?

Web developers

Software engineers

Full Stack Developers

Backend developers

Novices who meet prerequisites

Node.js Course Schedules

Can't find the training schedule you're looking for?

Request a Batch

What you will learn in the Node JS training online

How Node.js Works

Go under the hood to understand how Node.js works


Understand the Node REPL

Modular Programming and NPM

Learn all about modular programming and NPM

ECMAScript modules

Learn to use ECMAScript modules with Node.js

Build Command Line Utilities

Learn to build command-line utilities in real-time

File System Module and Streams API

Learn all about the file system module and the Streams API

All about Events!

Learn about events in Node.js and the Event Emitter interface

Network I.O

Work with Network I/O

Building Web Servers

Understand and build web servers


Learn about debugging

Cluster and Worker Threads

Discover cluster and worker threads for optimization and performance

Express Framework

Discover the Express framework

Template Engines

Learn about template engines and the Pug templating language

Building Middleware

Learn and build middleware for Express

Parsing Income Requests

Understand all about parsing incoming requests

Logging Requests

Learn about logging requests


Learn to use sessions

Data Compression

Incorporate data compression

Modular and dynamic routing

Understand modular and dynamic routing

Route Protection

Integrate route protection

Build APIs

Build APIs for front-end applications

MongoDB Atlas and Mongoose ODM

Work with MongoDB (MongoDB Atlas) and Mongoose ODM

Models and Controllers

Build models and controllers

Serving Single Page Applications using Express

Learn to serve single page applications using Express

JWT integration

Integrate JWT and session-based authentication

Redis Cache

Accelerate Express apps using Redis cache

Protecting Express Apps

Learn to protect Express apps against malicious attacks


Learn to deploy Node.js apps on the cloud with Heroku

Skill you will gain with the NodeJS training program

Build cutting edge server-side applications

Build command-line utilities and tools

Build reusable modules and distributable packages

Create sophisticated backends and RESTful APIs

Build networked applications and servers

Use Express for prototyping, building apps, APIs, services

Incorporate JWT and session-based authentication strategies

Incorporate Model-View-Controller architecture

Protect Node.js-Express apps, incorporate XSS, CSRF attacks

Deploy Node.js apps on the cloud

Transform Your Workforce

Set your teams up for the future with the complete Nodejs course

Node.js is making time-to-market shorter while delivering better user experiences and decreasing development costs. Empower your teams to ship innovative products on time and under budget.

  • Discover your team's strengths and weaknesses
  • Leverage Immersive Learning (with Cloud Labs)
  • Measure skills progress with the right data
  • Upskill your teams into modern roles with Customized Training Solutions

500+ Clients

Node JS Syllabus

Download Curriculum

Learning Objective

Discover Node.js and its capabilities and understand why it makes creating server-side applications easy and fast. Learn how to setup Node.js and write your first script before diving into synchronous and asynchronous programming and understanding the all-important event loop and non-blocking I/O.

  • Introduction to Node.js
  • Applications of Node.js and installation
  • Writing your first Node.js Script
  • Synchronous and Asynchronous programming
  • Under the hood - understanding the event loop and Non-Blocking I/O
  • Video preview 2.

    Learning Objective

    Understand what is Node.js REPL and its commands. Learn all about global and local objects in Node.js.

  • REPL and REPL Commands
  • Node.js CLI Commands
  • Global and Local Objects
  • Video preview 3.

    Learning Objectives

    Learn all about modular programming with Node.js and NPM. Discover the power of modules as you write your own module. Then learn all about using npm to set up and initialize a project before understanding package.json, local and global packages, using npx, and finally publishing a package on npm.

    • Introduction to Modules
    • Process and OS Modules
    • Writing Your Own Module
    • Introducing NPM
    • Initializing a Project Using npm init
    • Understanding package.json
    • Installing and using packages from npm
    • Local vs.Global Install
    • Using NPX
    • Publishing Package on npm


    • Write your own module

    Learning Objectives

    Node.js offers experimental support for ECMAScript modules, out of the box. Learn all about this feature and use it in your projects without the need of a third-party compiler such as Babel. You will learn to write and import an ECMAScript module as you learn about its syntax and uses.

    • ECMAScript Modules Versus CommonJS Modules
    • Enabling support
    • Writing an ECMAScript Module
    • Importing and Using an ECMAScript Module
    • ES6 syntax in detail


    • Importing and Using an ECMAScript Module
    Video preview 5.

    Learning Objectives

    Node.js allows you to work with the file system. This module covers the all-important ‘fs’ module as you learn to work with files and directories. You will learn to read and write files both synchronously and asynchronously.

    • File System Modeling in Node.js
    • Directory and Path Resolution
    • Reading Files Synchronously and Asynchronously
    • Writing Files Synchronously and Asynchronously
    • Directory operations


    • Learn how to write a file using Sync and Async.
    • Learn all about Directory Operations.
    Video preview 6.

    Learning Objectives

    Discover the Streams API in Node.js and its use case in the form of reading and writing files. You will also learn about transform streams.

    • Understanding Streams
    • Reading a File Using Readable Stream
    • Writing a file using Writable Streams
    • Transform Streams
    • Streams vs Files


    • Learn how to work with transform streams

    Learning Objectives

    Learn to use the events module to create your own events and emit them. Learn to write an event handler for an event raised by your own created custom events.

    • Event Emitter
    • Handling Events

    Learning Objectives

    Understand the purpose of the net module and how to use it in a node application. Learn to create a server that listens when the client connects to it. Also, learn to create a client that communicates with the server and is able to exchange messages.

  • Introduction to the Net module
  • Creating a TCP Server and Listener
  • Creating a command-line chatbot 
  • Video preview 9.

    Learning Objectives

    Learn all about building servers using the HTTP module. You will also learn about handling incoming requests and sending out responses as you build a web server that serves a static website. Learn all about HTTPS and HTTP/2 and learn to handle Cross-Origin Resource Sharing (CORS).

    • Web Server: Web Application Architecture
    • HTTP module
    • Making HTTP requests
    • Serve JSON as a response
    • Serve HTML as a response
    • Building a basic web server with routes and streams: Serve a static website
    • Using HTTPS
    • Using HTTP/2
    • Understanding CORS


    • Learn how to make HTTP Requests
    • You will learn serving JSON as a response
    • You will learn serving HTML as a response
    • You will learn serving a static website
    Video preview 10.

    Learning Objectives

    Understand debugging and its importance in an application development environment. Learn how to debug a Nodejs application with an inspect flag.

    • Introduction to debugging
    • Debug node js apps

    Learning Objectives

    Discover threads and the worker thread API in Node.js. Learn to write CPU intensive code using the worker threads and understand the need for clusters for scaling up a Node.js app.

    • Introduction to the Worker Threads API
    • Handling compute-intensive tasks using Worker Threads
    • Node.js on multi-core CPUs using Cluster


    • You will be handling compute-intensive tasks using Worker Threads
    Video preview 12.

    Learning Objectives

    Learn about the need for an application framework when building Node.js apps. Build a basic Node.js application framework. Discover Express and the benefits it brings to application development. Learn about real-world customers who bank on Express for their production apps.

    • What is a Node.js web application framework?
    • BYOF - Build Your Own Framework
    • Introducing Express
    • Who uses Express?


    • You will build your own framework
    Video preview 13.

    Learning Objectives

    Build the very first Express app. Learn to add a route handler for POST requests in your Express application, and learn to use the express-static middleware to serve static assets.

    • Build your first Express app
    • Learn adding a route handler
    • Serving Static Assets and HTML files


    • You will build your first Express app
    • Add multiple route handlers to the app
    • Serve a static signup page with its stylesheet
    Video preview 14.

    Learning Objectives

    Learn and configure a view engine to render dynamic Pug templates. Next, learn to build a simple dashboard page using Pug. Finally, build and include a partial using Pug.

    • View Engine – Pug
    • Building the Dashboard
    • Building the Post Card


    • You will be rendering a dynamic signup page using Pug

    Learning Objectives

    Discover middleware and its role in an Express application. Learn to handle and parse incoming requests such as form data using middleware. Next, learn to use Morgan, a third-party middleware that helps you log requests. Understand how to implement sessions using the express session middleware. Finally, learn to write your own middleware function and implement response data compression.

    • What is middleware?
    • Parsing incoming requests
    • Logging with Morgan
    • Using the express-session middleware
    • Compression and Your own middleware


    • Handling form-URL-encoded requests in a simple signup mechanism
    • Using sessions to persist data
    • Write a simple route protection middleware
    Video preview 16.

    Learning Objectives

    Learn to implement modular routing using the Express Router module. Organize the routes by service domains and learn to handle dynamic routes and route parameters. Finally, implement a very basic route protection mechanism using middleware functions.

    • Modular routing with Express Router
    • Organizing routes
    • Dynamic Routing and Route parameters
    • Basic route protection using middleware


    • Build a simple API
    • Use route parameters to render a list of movies and genres

    Learning Objectives

    Set up a database on MongoDB Atlas and configure it to work with the Express application. Learn to set up and configure Mongoose, the most popular ODM for MongoDB. Next, build a Mongoose Schema and Model to manage user accounts/store and manage blog posts. Finally, bring in our precooked React web application and set it up.

    • Working with MongoDB Atlas
    • Setting up Mongoose ODM
    • Building the Users schema and model
    • Building the Posts schema and model
    • Serving the client web application


    • Setting up Mongoose ODM
    • Building a Schema and Model
    • Integrating a client application

    Learning Objectives

    Understand all about JWT Authentication and how it differs from session-based authentication. Build a controller that enables admins to login. Also, build controllers and API for letting users signup or log in from the client app. Understand how to build controllers and API for creating, reading, and deleting blog posts. Implement profanity filtering and the ability to moderate posts.

    • Signing up an Admin and Password Hashing
    • Admin Authentication - Controller and Route
    • Authentication API - Controller and Routes
    • Posts API - Controller and Routes
    • Profanity Filtering and Post Moderation


    • Creating a controller

    Learning Objectives

    Level up the caching strategy by setting up Redis and implement Redis as a cache. Understand how to use Redis as a fast session store.

    • Setting up Redis for caching
    • Caching and Serving Content
    • Configuring Redis as the session store

    Learning Objectives

    Learn to handle untrusted data such as form input. Also, learn to mitigate XSS and CSRF attacks.

    • Handling untrusted data
    • Preventing XSS and CSRF


    • Handling untrusted data

    Learning Objectives

    Learn to deploy the Node and Express app on Heroku.

    • Deploying an Express app on Heroku

    For the final capstone project, you are required to build an API server that uses a file-based database (or MongoDB) to serve multiple routes and HTTP verbs with minimal configuration needed to get up and running. The result is a simple, yet powerful API server for development purposes such as building React, Angular, and Vue applications.

    FAQs on Node.js Training

    Node.js Certification

    The Node.js training program has been thoughtfully designed to make you a skilled Node.js developer ready to take on significant backend or full-stack roles in top tech companies. At the end of the course, you will be able to:

    • Build cutting edge server-side applications
    • Build command-line utilities and tools
    • Build reusable modules and distributable packages
    • Create sophisticated backends and RESTful APIs
    • Build networked applications and servers
    • Use Express for rapidly prototyping and building applications, APIs, and services
    • Incorporate JWT and session-based authentication strategies
    • Incorporate Model-View-Controller architecture
    • Protect Node.js-Express apps by incorporating XSS and CSRF attacks
    • Deploy Node.js apps on the cloud

    The Node js program takes you all the way from the basics of Node.js to writing and deploying a complete application using the Express framework. 

    Whatever your level of expertise – beginner, intermediate or expert – this Advanced Node js certification at KnowledgeHut will give you the work-ready skills you need to become a confident developer and impress top recruiters as it is the best place to learn Node js.  

    Yes, Knowledgehut is known to provide the best Node js course training course and is designed to give you the flexibility to skill up at your convenience. We have both weekday and weekend batches to accommodate your current job and have interesting projects that will keep you practicing as you learn.  

    This Node js program is delivered both in a Blended Learning and Self-Paced mode so that you can balance your work and learning as per your schedule. 

    This Node course is well suited for web developers, software engineers, full-stack developers and backend developers. Novices too will benefit from this training, provided prerequisites are met. 

    In addition to training hours, we recommend spending about 2 hours per day every day of the training, to study, practice and achieve optimal benefits from the course.

    The Node js certification online training program is well suited for web developers, software engineers, full-stack developers and backend developers. Novices too will benefit from this training, provided prerequisites are met.

    A basic understanding of server-side development with intermediate JavaScript skills are required. 

    The requirements for the Node.js training are as follows: 

    Software Requirements 

    • MacOS/Windows/Linux operating system 
    • A code editor such as Microsoft VS Code 
    • A web browser such as Chrome 

    System Requirements  

    • Any workstation or laptop with at least 8 GB of RAM 

    Yes! Upon passing the Node.js Online Training, you will receive a signed certificate of completion from KnowledgeHut. Thousands of KnowledgeHut alumni use their course certificates to demonstrate skills to employers and their networks as this is the best node js course to begin with. 

    More than the certificate, however, you will get to showcase your newly acquired Node.js skills by working on real-world projects and adding these to your portfolio. KnowledgeHut offers the best Node js course online. It is well-regarded by industry experts who contribute to our curriculum and use our tech programs to train their own teams. 

    KnowledgeHut offers the best course for Node js. Solidify your grip on Node.js and Express with a capstone project at the end of the Node certification. You will create a full-blown API server that uses a file-based database (or MongoDB) to serve multiple routes and HTTP verbs with minimal configuration needed to get up and running. The result will be a simple, yet powerful API server for development purposes such as building React, Angular and Vue applications.  

    This is the best Node course to begin your journey in Node js. Once you have mastered Node, you can consider learning the following: 

    • Cloud deployment on AWS, GCP and Azure
    • Dockerizing Node.js apps
    • CI/CD for Node.js apps
    • A web application framework like Next.js (React based framework)
    • Building serverless applications

    Individuals can try out KnowledgeHut’s immersive learning experience using a free trial. KnowledgeHut offers the best Node js course. You have 14 days or 30% access, whichever comes first, to the course you’ve started the free trial for.  This includes all the features of the platform, including on-demand videos, 3 hours of Cloud Labs, auto-graded assessments, interactive eBooks, recall quizzes and advanced learning insights. 

    On successful completion of the Node js advanced course and submission of all required assignments and advanced node js projects, you will receive a signed certificate of completion from KnowledgeHut. While this certificate serves as a validation of your skills, it's your immediately demonstrable Node.js skills that will help you stand out.  

    You will be able to apply the advanced Node js skills you have newly acquired through micro work-like experiences and the learn-by-doing immersive learning approach in our Node js certification course. KnowledgeHut is widely regarded to offer the best course for Node js by industry experts who contribute to our curriculum and use our tech programs to train their own teams.  

    Node.js Online Workshop Experience

    The KnowledgeHut node js best course is delivered through PRISM, our immersive learning experience platform, via two modes of delivery: 

    Blended learning:

    • Get the best of both worlds with live and interactive instructor-led training sessions along with the convenience and flexibility of self-paced learning.
    • Listen, learn, ask questions, and get all your doubts clarified from your instructor, who is an experienced practitioner. 
    • You also get to collaborate and learn from the experience of your peers in real-world simulations and activities.

    On-Demand Self-Learning:

    Learn the advanced Node js conveniently at your own pace, whenever and wherever you choose. Spend as much time as you need to on areas or topics that you find most difficult, pausing and replaying relevant segments of video as often as you need to. Benefit from the limitless educational possibility that comes with lifetime access. The entire courseware and all the features of our immersive learning experience platform will remain at your fingertips whenever you wish to refresh concepts and clear your doubts. 

    The advanced Node.js course is delivered by leading practitioners who bring current best practices and case studies from their experience to the live and interactive training sessions. The instructors are industry-recognized experts with more than 10 years of experience in Node.js and web development. 

    Not only will they impart knowledge of the fundamentals and advanced Node js concepts, but they will also provide end-to-end mentorship and hands-on guidance on the real-world projects.  

    Our workshops are structured in three parts – pre-workshop, workshop and post-workshop – to provide you with a completely immersive learning experience. This tried and tested workshop structure has worked well with thousands of engineers we’ve helped upskill over the years.

    1. Pre-workshop: Take our diagnostic assessment before the workshop and benchmark your skill levels at the start of the course. This allows you to map and demonstrate your skills learning progression as you reach the end of the course.
    2. Workshop: Join the live and interactive instructor-led sessions right from within PRISM, our immersive learning experience platform with a state-of-the-art intelligent coding environment. Experience immersive learning with cloud labs, guided hands-on exercises, assignments, auto-graded assessments, recall quizzes, real-world projects and much more.
    3. Post-workshop: We don’t just impart skills but also want to make sure that you implement them post the course. To help you with this, we are always in touch with you through newsletters, webinars or next version trainings. Some post-training deliverables lined-up for you are:
      • Project assistance with mentorship
      • Access to alumni network
      • Continued social learning with discussion forums, group messenger and one-to-one messaging.
      • Additional workshops on advanced level concepts
      • Regular emails, blogs, articles, emails, newsletters, and other such rich informational content will be provided with the nodejs tutorial and projects course.  

    A unique feature of our Node js Online Certification course is the highly engaging, immersive learning you experience. Through the node js complete course, you get to learn, practice, assess, get insights on your learning, and personalize your learning journey. 

    LEARN: Engaging self-learning videos, smart flashcards, interactive eBooks and recall quizzes help reinforce your learning. You also get to maximize your learning potential with collaborative social learning via discussion forums and group and one-to-one messaging.

    PRACTICE: Access our Playground Labs during and after the course. Guided hands-on exercises will help you gain confidence and get productive from day one.

    ASSESS: Assess your skills at every stage with a variety of questions ranging from multiple choice to code-based, completely auto-graded by the system. Assignments and projects within our inbuilt and intelligent development environment give you micro “work-like” experiences. Test your subject matter comprehension through diagnostic, module level and final assessments.

    GET INSIGHTS: Based on your performance in the assessments, assignments, and projects, you gain deep insights on your progress, which help you identify areas you are good at and where you need to improve. All you need to do is follow recommendations and enhance your skill proficiency from where you are to where you want to get.

    PRISM is KnowledgeHut’s state-of-the-art learning experience platform. PRISM is designed to provide a highly engaging, immersive learning experience with you at the center of the learning.

    PRISM supports all types of courses, including on-demand self-paced learning, blended learning, and live virtual classes. Here are some key features of the platform:

    1. Learners can watch videos, join live sessions directly, and even book 1 - 1 mentoring sessions with expert instructors easily, using a single dashboard.
    2. Integrated Practice Environment runs directly in the user’s browser, offering a complete set of development tools to allow learners to practice what they’ve learned. 
    3. Feature-rich videos with detailed explanations are augmented by flash cards, interactive e-reading content and quick recall quizzes designed to strategically reinforce learning. 
    4. Diagnostic, module-level and final assessments give learners valuable insights, allowing them to map and demonstrate their skills learning progression through the course.
    5. Learners get micro work-like experiences from auto-graded projects that help them learn on the job, much like developers in leading tech companies.
    6. Social Learning tools include a discussion board that features questions posted by other learners on the system and responses by both mentors and learners. Additionally, one-to-one and group messaging is also available.
    7. Comprehensive reports give both organizations and learners a deep and thorough insight into skills progression.

    Our node js course syllabus is currently covered online and anyone with a stable internet from anywhere across the world can benefit from this to skill up in Node.js. 

    Schedules for our upcoming workshops in Node js Online Certification course can be found here. You will find the timings as well as the node js course duration in this link. 

    You will receive a registration link from PRISM to your e-mail id. You will have to set your password, log in to our Immersive Learning Experience platform and start your learning journey. 

    You will receive a registration link from PRISM to your e-mail id. You will have to set your password, log in to our Immersive Learning Experience platform and start your learning journey for the best node js course.  

    Yes, Cloud/Practice Labs in a preconfigured development editor inbuilt into your learning space will be available for your guided hands-on exercises, assignments and practice during and post the Node.js training.

    The playground labs are low-friction sandbox environments, offering the ability to get started without any installations in your local system. We have tried hard to ensure that practice labs simulate the developer experience. These in-browser solutions feature environments for working with all kinds of platforms including operating systems, coding languages, and more.

    The goal is to provide you with sandbox environments where you can feel free to run any command and experiment without the guidelines of a typical lab. The end goal is to increase the amount of practical, real-world experience you gain to get you completely work-ready on course completion.

    You will be granted 100 hours of access to Cloud Labs to perform all your hands-on exercises, assignments, and projects including your final capstone projects. Post the training, you will retain access to the platform, the learning material, and any unutilized hours on the Cloud Labs for a period of six months.

    Practice is key to taking your coding skills to the next level. Should you need additional hours of practice on Cloud Labs, these will be available for purchase. Just raise a ticket on PRISM or write to us at and we'll set this up for you.

    You will have lifetime access to the entire Self-Paced Learning material including on-demand videos, assessments, quizzes, ebooks/case studies and more.

    You can attempt the recall quizzes any number of times. Assessments can be taken twice.

    We currently use the Zoom platform for video conferencing and will soon be adding more integrations like Webex and Microsoft Teams. However, all the sessions and the recordings will be available right from within our learning platform. Learners will receive instructions through PRISM notifications and will not need to wait for any external notifications or links.

    Yes, there are other participants who actively participate in the class remotely.  They can attend online training from office, home, or any other suitable place.

    In case of any queries, our support team is available to you 24/7 via the Help and Support section on PRISM. You can also reach out to your workshop manager on your workshop group messenger.

    If you miss a class, you can access the class recordings from PRISM at any time. At the beginning of every session, there will also be a 10-12 minute recapitulation of the previous class. 

    Should you have any more questions, please raise a ticket on PRISM or email us on and we will be happy to get back to you.

    Node JS Training

    Node JS

    A program written in JavaScript needs to be executed. Node.js is an open-source run time environment that includes everything that is needed to execute a JavaScript program. 

    Node JS runs on Chrome’s V8 JavaScript engine. Node JS uses a non-blocking, event-driven input/output model that makes it compact and efficient, its applications use single threaded event loop architecture in order to handle contemporary clients. 

    Node JS is not a programming language but an interpreter or a run time environment in JavaScript. It is better to say that it is a language engine that allows to run a code locally on a computer. 

    Node JS is a JavaScript runtime environment while Python is a programming language. We cannot directly compare them so we compare JavaScript runtime with Python on the backend. Both of them go neck-on-neck in terms of scalability, concurrency and error handling but the one area where Python cannot match Node JS is in terms of performance. Node JS is  based on Google Chrome’s V8 engine so it provides significantly better performance. 

    Steps to run Node JS code: 

    • Find Command Prompt by entering cmd in the search bar. Select cmd in the search results menu to open Command Prompt.  
    • Type the command below and then press “Enter” in order to create a file name “test-node.js” which contains a simple application to print the result of 1 + 1: 

    echo console.log(1+1); >> test-node.js 

    • Type node followed by the name of the application, given above and then press “Enter”: 

    node test-node.js 

    • The result of running the application should be printed out in the command prompt. 

    Node JS is a runtime environment in JavaScript that can be used in both types of scenarios: 

    Front-end javascript finds the JS under HTML5 pages, where it is used to build non-static web pages and automatically react to events that occur on the page, whereas back-end JS is used with node.js and its corresponding packages to handle data transfers, web page requests, and general server tasks. 

    Yes, Node JS will be able to run Web Assembly although the performance may be affected. It can be run either on client-side or server-side. 

    Callback is a function that is passed to another function so that the action can take place “asynchronously” meaning “not existing or occurring at the same time”. Callback hell occurs when you have callbacks within callbacks within callbacks in the code and it is not possible to get an output or result. 

    Node in Node JS stands for a single node that is used to handle multiple concurrent clients. The platform is called “Single Threaded Event Loop”. This process along with the V8 engine makes Node JS very fast. 

    Here are some of the best Node JS frameworks: 

    • Express.js - On top of a set of routing libraries, it provides a few web application features 
    • - It is designed to establish real-time two-way event-based communication. 
    • Sails.js - It is used for developing modern, real-time features like chat. 

    While writing a code in JavaScript, it is very important to structure it properly. Node.js modules can be thought of as JavaScript libraries where you would want some parts to be together and some parts to be completely separated from rest of the code. Each module has its own scope and cannot interfere with other modules and pollute the rest of the code. 

    Here are some types of apps that can be built with Node JS: 

    • Online payment applications 
    • Microservices architecture 
    • Social Platforms 
    • Streaming Platforms 
    • E-commerce platforms 
    • Internet of Things 

    Depending on what you want your application to do, here are some examples of scaling and what they are used for:  

    • Horizontal scaling: Duplicating your application so as to cope with large number of incoming connections. 
    • Vertical scaling: Used to enhance power and increase memory. 
    • Have multiple processes running on the same machine to distribute the incoming connections. 
    • Scaling Across Multiple Machines with Network Load Balancing where each machine will run one or more processes in order to balance the load across the entire system. 

    At first, import the ‘data_base’ using the following statement: 

    let data_base = require('database'); 

    Secondly, establish a connection to the database by calling the createConnection() method and provide information on data_base server such as host, user, password and database as follows: 

    let connection = data_base.createConnection({host: 'localhost' ,user: 'root' ,password: ' ', database: 'todoapp'}); 

    Here, we created a connection to todoapp database in the local database server. 

    Now, call the connect() method on the connection object to connect to the data_base database server: 

    connection.connect(function(err) { 

      if (err) {  return console.error('error: ' + err.message); } 

      console.log('Connected to the data_base server.'); 


    The connect() method accepts a callback function that has the err argument which provides the detailed error if any error occurred. 

    If the program shows the following result, the program is successful: 

    node connect.js 

    Connected to the data_base server 

    Node.js is written in C, C++, and JavaScript.

    Node.js is a free, open-source server environment that uses JavaScript on the server and runs on various platforms like Windows, Mac, OS X, Unix, Linux, etc. It uses asynchronous programming. 

    Here are 7 cases you can use Node.js for:

    • Chat servers - Node.js can be used for any fast-upload system challenged to respond in real time.
    • Real-time apps - These are the ones which utilize capabilities of Node.js. These apps process high volumes of short messages that make low latency critical. Through Node.js, you can achieve the following:
      • Share and reuse Node.js packages that store library code.
      • Process fast and sync data between client and server quickly
      • Cope with multiple client requests
    • Video conference apps - Node.js can be used for projects using specific hardware or VoIP or the ones that involve intense data streaming.
    • Highly scalable apps - Apps that depend on the server-side server technology that enables them to scale out on multi-CPU servers. Because of its cluster-based architecture, Node.js is best for applications that use technology for spreading the load across a multi-core server.
    • Online gaming apps and eCommerce transaction software - Node.js can be used for powering applications that need online data.
    • Server-side applications - As it has an event-driven model of programming, the messages, and specific events like user actions determine the flow.

    Node.js is the server technology that gives your team a boost that comes when you use the same language on the front and back end. This means the team is now cross-functional and more efficient that leads to less development costs. Here are the two situations where you can use Node.js:

    • Real-time applications - For real-time applications or RTAs, you need to process a high volume of short messages that require low latency. These can be developed easily using Node.js.
    • Fast and scalable environment - When it comes to speed, Ruby on Rails is not sufficient. When you need something fast and scalable, Node.js is the best option for you. It can process several requests in less time and share things like the validation code between client and server. This makes it a great fit for web applications that have a lot of processing on the client’s side.

    13 years after the first server-side JavaScript environment known as Netscape’s LiveWire Pro Web was introduced, Tyan Dahl wrote Node.js in 2009. Initially, it only supported Mac OS X and Linux. The development and maintenance was handled by Dahl which was later sponsored by Joyent.

    In January 2010, a package manager, npm was introduced for the Node.js environment. It made publishing and sharing code easier for the programmers. It was designed to simplify the processing of installing, updating, and uninstalling packages. Microsoft and Joyent implemented a Windows version of Node.js in June 2011 which was released in July 2011. Dahl stepped aside from the project in January 202 and Issac Schlueter took charge of managing the project. In January 2014, Timothy J. Fontaine started leading the project.

    In December 2014, io.js, a fork of Node.js was started by Fedor Indutny. Because of the internal conflict over the governance of Joyent, io.js became an open governance alternative that had a separate technical committee. In February 2015, it was announced that a neutral Node.js Foundation will be formed. By June 2015, the communities of Node.js and io.js voted for working together under the Node.js Foundation. In September 2015, Node.js v0.12 and io.js v3.3 were merged to form Node v4.0. In 2019, the OpenJS Foundation was created by merging JS Foundation and Node.js Foundation.

    Node.js is neither a language nor a framework. It is an open-source, run-time development platform that is used for executing JavaScript code server-side.

    Here are a few features of Node.js:

    • Asynchronous and event-driven 
    • Very fast 
    • Single threaded 
    • Highly scalable 
    • No buffering
    • MIT license

    Node.js was created by Ryan Dahl in 2009. The development and maintenance was later sponsored by Joyent.

    Here is how you can get started in Node.js: 

    • Install Node.js and nvm software
    • Download the installation package from according to your platform and install it.
    • For Mac OS, download and install Homebrew and then use brew install mode for installing Node.
    • Download and install nvm and then use ‘nvm install’ for installing the version of the Node you want.

    Next, you can start following any tutorial and practice programming.


    Before you get started with Node.js, you should be familiar with JavaScript. If not, you must have programming experience with languages like Java, C++, C#, Python, PHP, etc.

    Once you are done with the prerequisites, install software on your system. You must know how to use the command line on your platform.

    Learning Path

    • Install Node.js and npm software
    • Take a tour of Node.js that includes the following:
      • Node API
      • Node core
      • JavaScript engine
      • Event loop
      • Read-Eval-Print Loop (REPL)
      • Npn ecosystem
      • Non-blocking I/O model
      • Familiarize yourself with Node.js concepts
      • Non-blocking I/O model
      • Asynchronous programming style
      • Module system
      • Chrome v8 profiler
      • Load testing, etc.
    • Understand the Node event loop
      • Node events and creating a custom event
      • Streams and how to use them for mapping out the event loop’s phase
      • Passing arguments to timer callbacks
    • Build your first Node.js applications
    • Get familiar with the Node package manager (npm)
    • Learn dependency management
      • Project metadata including name, version, etc.
      • Information about dependency in Semantic Versioning or SemVer format
    • Testing through tools like:
      • Mocha
      • Chai
      • Sinon
    • Logging packages that you can use for application logging:
      • Log4js
      • Winston
    • Work with the ExpressJS
    • Learn the most popular NoSQL database - MongoDB
    • Learn how to debug and profile

    Here are the benefits you will enjoy by getting trained in Node.js:

    • You can use Node.js to write JavaScript on the client and server.
    • You can use it for building powerful, complex applications without the need for complex code.
    • It is well-suited for building microservices.
    • You can use it for more than just web development.
    • It is a robust project that isn’t going anywhere anytime soon.

    Node.js was built in 2009 by Ryan Dahl, a software engineer at Joyent. The initial Node.js version only supported Linux and Mac OS X until the first version supporting Microsoft was released in 2011. The development and maintenance of Node.js was led by Dahl and later sponsored by Joyent.

    Though Node.js is relatively new, it is by no means a novelty since even the Fortune 500 companies are favoring Node.js over other frameworks. According to the latest StackOverflow survey, Node.js is the most used technology today. Here are some of the top firms that use Node.js:

    • LinkedIn 
    • Netflix 
    • Walmart 
    • Trello 
    • Uber 
    • PayPal 
    • NASA 
    • GoDaddy 

    To learn Node js step by step can be easy or difficult depending on your level of expertise, grasping power, and training method. In order to learn Node JS from scratch, in-depth knowledge of the JavaScript fundamentals and Node.js API will be beneficial, it does not guarantee easy learning. Even with a strong programming background learning Node.js can take you anywhere between weeks to months.

    Getting trained by an adept Node.js professional will not only reduce the learning curve but enrich your knowledge with real-world experiences. Opt for KnowledgeHut’s Node.js course and experience accelerated learning via hands-on exercises, simulated environment, live interactions with industry experts, and more.

    There are several roadmaps to acquiring Node.js skills on your own or via training. But the most effective and efficient way to learn Node.js is to get trained under an expert Node.js professional. Attending the Node.js course via KnowledgeHut can help you with that.

    Our Node.js course is designed to easily equip learners like you with the most in-demand skills in a fun, interactive manner via real-world projects and case studies, hands-on exercises, assessments, and more. Enroll in our latest Node.js course and benefit from our Immersive Learning approach.  

    When you learn Node JS from scratch, the learning curve can vary from weeks to months depending on your experience level, current skillset, training method, etc. To experience easier fast-paced learning, get trained under skilled Node.js professionals' expert guidance via KnowledgeHut’s Immersive Learning Course. 

    Check out our upcoming Node.js courses and enroll today.

    Node JS Uses

    The Node JS is a cross-platform JavaScript  module that can be run on our machine. It is an open source JavaScript server environment in which we can run any JavaScript code on the server area. It is probably the most popular way for building servers. It is also used for making building chat applications and for real-time communication. 

    Before creating Node JS, the browsers were the only place where we could run JavaScript application because they contained the JavaScript engine  like Google's V8 engine and Firefox's Spidermonkey. In order to be able to run JavaScript on your computer or any kind of robotic device you need to have Node JS. Johnny-5 is a JavaScript library that you can use with Node JS. if you have Raspberry Pi. You can build robotic functions using JavaScript. Node JS is really fast in nature and more companies are using it now as a back-end server because of it is built quality. 

    Learn Node JS

    Yes, learning Node.JS is still worth learning because it is becoming more relevant day by day.It has many applications that makes it popular. Infact Node.js is one of the most popular frameworks in the world.The top companies that use Node.JS in their implementation include Uber, Netflix ,Trello, PayPal, etc.The main advantage of JavaScript  is that it is one of the mostly used and popular client side programming language.There are job offers with high packages in this arena given that it requires some expertise about these domains. 

    First of all, you can start learning JavaScript because Node.JS is nothing but a part of JavaScript. As far as my experience I would advise you to strengthen your basic concepts and start building small projects. By building small projects your conceptions, you will have a clear understanding and gain some experience. Once you get a proper hold on the basic concepts you can refer to Stack Overflow which will give you real insights about the issues people face during programming in Node.JS. Once you are done with all of this, you can start building a full-stack project using Note JS. 

    Node JS training and certification

    Certification is indeed a major step in learning which allows certified developers to use their credibility and market value. It also allows major companies to quickly hire high-quality teams to support their growth scale. Below are some references that will help you in gaining certifications of Node.JS- 

    Edx:Introduction to NodeJS 

    Simply learn:Full-stack MEAN Developer Certification 

    Currently, there are no certifications available for Node JS in the market. But training under expert Node.js practitioners is enough to help amp up your skills, scale-up as a developer, and widen your job prospects.

    Career scope and salary

    In the present time, Node JS has been growing a lot. According to the StackOverflow Developer survey, the salary scale of JavaScript developers are at a high rate all over the world. It mostly depends on the company you are working with. If you have a good working experience, then you will easily get a better platform for grow in this area. The average salary of a Javascript Developer is around $90,000 in the US and $45,500 in UK and the annual Node.js developer salary in India is around $8,000 to $10,000. 

    Node.JS is a fast, responsive, high-throughput server side platform. Major companies like LikedIn, NASA, Facebook make use of it to build their products and future innovations. 

    Node.JS is a very good choice for future web implementations because of the following-  

    • It is easy to learn and most of the developers learn by self-tutoring.  
    • It is one of the fastest growing JavaScript frameworks over the past few years because of its various implementations and popularity  
    • It enhances the productivity, performance of the application and the satisfaction level of Developers and reduces the cost and time taken for process development 

    Most of the famous companies use Node JS.Some of the popular companies that uses Node.js and other JavaScript-based frameworks - 

    • Flipkart 
    • Hacker Rank 
    • Netflix 
    • Uber 
    • SO 
    • Linkedin 
    • Walmart 
    • NASA 
    • Paytm 
    • Medium 
    • eBay  

    Node.js is one of the most in-demand technologies being used today. Adopted by 49% of professional developers and 28,000 US websites, Node.js’ popularity continues to grow. 

    Currently, a professional with Node.js skill earns an average salary of INR 648,129 in India and $90,282 in the USA.

    A professional equipped with Node.js can pursue different roles depending on his desire, level of experience, and current expertise. The salaries will differ from role to role.  

    As the demand for Node JS continues to grow, more companies continue to adopt the framework, widening the job prospects for Node JS professionals. Here are some of the top firms employing Node JS professionals:

    • Accenture 
    • Oracle 
    • Upwork 
    • LinkedIn 
    • Netflix 
    • Walmart 
    • Uber 

    What learners are saying

    Matt Connely Full Stack Engineer

    The learn by doing and work-like approach throughout the bootcamp resonated well. It was indeed a work-like experience. 

    Attended Front-End Development Bootcamp workshop in May 2021

    Madeline R Developer

    I know from first-hand experience that you can go from zero and just get a grasp on everything as you go and start building right away. 

    Attended Back-End Development Bootcamp workshop in April 2021

    Lauritz Behan Computer Network Architect.

    Overall, the training session at KnowledgeHut was a great experience. I learnt many things. I especially appreciate the fact that KnowledgeHut offers so many modes of learning and I was able to choose what suited me best. My trainer covered all the topics with live examples. I'm glad that I invested in this training.

    Attended PMP® Certification workshop in May 2020

    Elyssa Taber IT Manager.

    I would like to thank the KnowledgeHut team for the overall experience. My trainer was fantastic. Trainers at KnowledgeHut are well experienced and really helpful. They completed the syllabus on time, and also helped me with real world examples.

    Attended Agile and Scrum workshop in June 2020

    Nathaniel Sherman Hardware Engineer.

    The KnowledgeHut course covered all concepts from basic to advanced. My trainer was very knowledgeable and I really liked the way he mapped all concepts to real world situations. The tasks done during the workshops helped me a great deal to add value to my career. I also liked the way the customer support was handled, they helped me throughout the process.

    Attended PMP® Certification workshop in April 2020

    Anabel Bavaro Senior Engineer

    The hands-on sessions helped us understand the concepts thoroughly. Thanks to Knowledgehut. I really liked the way the trainer explained the concepts. He was very patient and well informed.

    Attended Certified ScrumMaster (CSM)® workshop in August 2020

    Marta Fitts Network Engineer

    The workshop was practical with lots of hands on examples which has given me the confidence to do better in my job. I learned many things in that session with live examples. The study materials are relevant and easy to understand and have been a really good support. I also liked the way the customer support team addressed every issue.

    Attended PMP® Certification workshop in May 2020

    Alexandr Waldroop Data Architect.

    The workshop held at KnowledgeHut last week was very interesting. I have never come across such workshops in my career. The course materials were designed very well with all the instructions were precise and comprehenisve. Thanks to KnowledgeHut. Looking forward to more such workshops.

    Attended Certified ScrumMaster (CSM)® workshop in January 2020