What is NodeJS? JavaScript on the Server Explained

Introduction Hey there, fellow developers! If you've spent time building web applications, you've likely heard the buzz around NodeJS. If you still haven't, in my previous blog I have discussed about building your first basic NodeJS server from scratch with step-by-step guidance, you can refer here - Setting Up Your First Node.js Application . It's the technology powering everything big companies to countless startups' APIs. But what exactly is this Node.js, and why did it explode in popularity?