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Top 50 NODE JS Interview Question and Answer in 2025 | NODE JS Interview Question

 Top 50 NODE JS Interview Question and Answer in 2025 | NODE JS Interview Question: Now a days most of the IT Company asked NODE JS Question mostly in interview. I am creating this article to provide help to all MERN Stack developer , who is in doubt that which type of question can be asked in MERN Stack or NODE JS then they can learn from this article. I am Shiva Gautam,  I have 15 Years of experience in Multiple IT Technology, I am Founder of Shiva Concept Solution Best Programming Institute with 100% Job placement guarantee. If you want to know more visit  Shiva Concept Solution Top 50 Node.js Interview Questions and Answers Node.js is a widely used runtime environment for building scalable backend applications. Whether you are preparing for a job interview or want to strengthen your understanding, mastering key concepts of Node.js is essential. Below are 50 frequently asked interview questions with concise answers. 1. What is Node.js? Node.js is a JavaScript runtime t...

How to create Restfull API in NODE JS with Mongodb database using models & controllers folder.

This is most important artical that how to connect node js & mongodb and create Restfull API with separate models and controllers folder and separate file for server.js In this article i have explained all these requirements into below article.            Step1st:         Install Mongoose  and node js in your machine         npm insall mongoose      step2nd         Install express JS and moongoose in your machine         npm install express mongoose      Step3rd:        create two folders name it models and controllers and create one new          file server.js create product.js file under models and productControllers.js file under controllers Complete code of product.js file const mongoose = require(‘mongoose’); const productSchema = new mongoose.Schema({ name: { type: String, require...

What is Node JS? Node JS Introduction

Node Js is the runtime environment that provide the advanced dynamic library of Javascript that is used to manage dynamic operation using JS module with NPM(node package manager), it is used to implement server side operation using javascript language, it create API that can be used into REAT, Angular based  application. NODE js is the primary layer of angular and react application, without node environment we can not create the flexible API for React and Angular application. Node JS also used to handle file handling operations, it can read, write, append data from text files and binary files. NODE js is mainly used to connect data from database servers such as Mongo DB and MYSQL. NODE Js contain internal compiler chrome V8 Javascript engine to run the script , it  save the file using .js or .ts extension. Now I am providing the first program of Node Js to print hello world? Step1st:- Install Node Js in Machine using the following link            ...

How to create module in Node Js to implement functionality?

Module:- The module is used to contain the set of functions to implement functionality that can be called under node js main file. exports.functionname=   function() {       return statements; } How to call module under node js main file. var http = require('http'); var ref = require('./modulename'); http.createServer(function (req, res) {   res.writeHead(200, {'Content-Type': 'text/html'});   res.write("hello" + ref.methodame());   res.end(); }).listen(8080); console.log("Program started at localhost 8080");

NODE JS Complete Tutorial | Practical explanation by Shiva Sir

NODE JS  Complete Tutorial | Practical explanation by Shiva Sir : Now a days most of the IT Company asked NODE JS Question mostly in interview. I am creating this article to provide help to all MERN Stack developer , who want to learn node js easily. I am Shiva Gautam,  I have 15 Years of experience in Multiple IT Technology, I am Founder of Shiva Concept Solution Best Programming Institute with 100% Job placement guarantee. If you want to know more visit  Shiva Concept Solution