NodeJS-Questions

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How single threaded handles concurrency when multiple I/O operations happening in Node.js ?

Last Updated: 07 September 2022

Node JS is one of the most popular runtime environments, to build backend servers. Despite of its single-threaded nature, Node JS performs q ...read more

Create Newsletter app using MailChimp and NodeJS

Last Updated: 13 March 2024

Nowadays, every business uses email marketing to promote their business and send regular updates to their users via email. Maybe, you are al...read more

How to get count of Instagram followers using Node.js ?

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Last Updated: 24 March 2022

The following approach covers how to get the count of Instagram followers in nodeJs. We have used the instagram-followers package to achieve...read more

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How to handle errors for async code in Node.js ?

Last Updated: 09 October 2021

Asynchronous operation in JavaScript is the operation that does not block further operations. It means that if we perform an asynchronous op...read more

How to use handle get request in Express.js ?

Last Updated: 19 November 2021

Introduction: Express.js is the most powerful framework of node.js. It is a routing and Middleware framework for handling the different rout...read more

How to Build a JavaScript Command Line Interface (CLI) with Node.js

Last Updated: 04 August 2021

In this article, we will see how to create a JavaScript CLI with the help of NodeJs.JavaScript being an interpreter language, it is a very d...read more

How many threads does Node.js actually create ?

Last Updated: 06 October 2021

Node.js is a cross-platform JavaScript runtime environment which helps to execute and implement server side programs. Node supports asynchro...read more

Why Node.js doesn't see files in node_modules folder ?

Last Updated: 18 April 2021

Sometimes developers want to serve some static asset from node_modules. Usually, we don't want to expose any of your internal paths to the o...read more

How to emit an event when a checkbox is clicked using Socket.IO?

Last Updated: 28 November 2022

Problem Statement: Task is to perform an action by emitting an event from the backend whenever a particular checkbox is clicked in the front...read more

How to use routes with serve-static files in Node.js ?

Last Updated: 04 March 2022

The purpose of this article is to learn how to use routes to serve static files in Node.js, it has an inbuilt HTTP module to transfer data o...read more

OneSignal API Integration using Node.js

Last Updated: 06 October 2021

We generally use OneSignal API to deliver notifications, email, export data, create and delete segments, etc. We will be using onesignal-nod...read more

How to add unique constraint in collection of MongoDB using Node.js?

Last Updated: 08 February 2021

Mongoose module is one of the most powerful external modules of the node.js.Mongoose is a MongoDB ODM i.e (Object database Modelling) that u...read more

Technical Scripter 2020

How to set up Kubernetes cluster on local machine using minikube ?

Last Updated: 03 February 2021

Creating a Kubernetes cluster on AWS, Google Cloud, etc, can be a little difficult and cost you a pretty decent amount of money. If you have...read more

How to convert an existing callback to a promise in Node.js ?

Last Updated: 22 January 2021

Callback: In terms of JavaScript, callback is a function passed as a parameter to another function. The function executes as soon as the res...read more

Technical Scripter 2019