Variable Hoisting in Javascript.
Javascript is weird. In Javascript you can use a variable before declaring it. In other words, A variable can be declared after it has been used. for example: x =…
Installing NGINX on an AWS EC2 instance.
NGINX is an open-source, lightweight, and high-performance web server developed by Igor Sysoev and released in 2004. It is one of the most popular web servers in the world. In…
What is ‘This’ keyword in Javascript?
In Javascript 'this' refers to an object in the current executing context. Now, let's check what the hell is the current execution context. It simply means on what scope or…
Understanding JWT Tokens using Node.js.
So, We will be checking how to use jwt token for api authorization. For the sake of this tutorial I won't be using any database for data but rather an…
Consuming SOAP API with NODE.js
I have no idea why you or anyone would prefer SOAP over REST using Node.js. The reason why I had to do it was that one of the clients had…
Understanding Call, Apply and Bind functions in Javascript.
If you are trying to understand javascript's call apply bind function then the first step to understanding these call, apply, and bind methods are to understand 'this' keyword in javascript.…
Social Login using Passport.js in Node.js.
What is Passport.js? Passport is authentication middleware for Node.js. As it’s extremely flexible and modular, Passport can be unobtrusively dropped into any Express-based web application. A comprehensive set of strategies…
Understanding Object.create() vs Object.assign() in JavaScript: A Comprehensive Guide
When working with objects in JavaScript, two commonly used methods are Object.create() and Object.assign(). While both methods deal with object manipulation, they serve fundamentally different purposes and understanding these differences…
Browser Automation Using Puppeteer in Node.js
In simple terms, Puppeteer is a node library that provides high-level API to control a headless chrome or chromium instance. According to its git repository : " Puppeteer is a…