Whenever we talk about backend development there is one term that is mainly used by developers of almost every level, from beginner to expert. That term is ExpressJS. This tutorial will introduce you to the basics of ExpressJS and we are going to do several interesting things with it. What is ExpressJS? It is a […]
ExpressJS Tutorial: An Introduction to ExpressJS and Hello World App Read More »
JavaScript is different from other programming languages in terms of data types, it is dynamically typed, allows changing the data type of a variable during runtime, it uses the concept of loose equality, i.e, it compares value regardless of what data type is, even it allows to declare a variable without any keyword like var,
JavaScript null and undefined Read More »
The strict mode in JavaScript helps us to write secure code by detecting accidental errors and bugs in the code. It produced the visible mistakes hidden in JavaScript, by default JavaScript just failed silently without showing the errors. In this tutorial, you will learn about the strict mode in JavaSript, the process of activating strict mode
JavaScript Strict Mode: What it Does and Doesn’t Allow Read More »
Error is a term referring to an unexceptional affair that creates trouble in the expected execution. The errors can occur due to many reasons such as access not existing variables, invalid syntax, data type mismatch, etc. These errors are essential to handle to construct a secure stable application. Also Read: NodeJS Errors: List of 6
JavaScript Error Handling: Try, Catch, and Finally Read More »
A module is an application’s component that can hold the partial programs to provide some custom functionality. It decreases the clatter in the code. Also, it’s a bad approach to write the entire code for a program in a single file, so it is suggested to divide the relevant code into separate JavaScript files called
NodeJS Module Exports Demystified: A Beginner’s Guide Read More »
In JavaScript, Array is a variable that can store multiple types of data together, an array can have a number, a string, a boolean, object, etc. There is no fixed data type and length of an array in JavaScript which makes it super flexible and easy to use to combine data together. Array in other
JavaScript Array: Understanding the Concept and Uses Read More »
Generating Random Numbers can be useful for multiple purposes. This tutorial provides a complete guide to generating random numbers in JavaScript. Before we dive deep into the process, let’s see some of the common use cases for generating random numbers. Why Do We Need a Random Number Generator? Below are some of the most command
Javascript Random Number Generator – A Step-by-Step Guide Read More »
Nowadays everyone has to use WhatsApp whether they are in a corporate background or just for communicating between friends and family. The app has seen numbers of users of over 2 billion in a month. In India alone, more than 340 million users are active every month. Sometimes there are some repetitive tasks that can
How to make a simple Whatsapp Bot in NodeJS Read More »
A MongoDB database has multiple collections. These collections can store millions of documents(data in MongoDB is called a document) and we can fetch all the data from a collection by performing a read operation using different methods like the collection.find(). These Read operations methods do not return documents instead they return a cursor. This tutorial will
MongoDB Cursor in NodeJS Read More »
A class is a concept of Object Oriented Programming(OOP). Object Oriented Programming is an essential concept in programming, it helps to reduce the difficulty of scaling the application. It provides a way to concatenate various method and property to create a blueprint from which multiple instances is created to increase the useability and reduce the
What is a Class In JavaScript? Read More »