JavaScript has extended into the field of mobile app development with a number of cross-platform frameworks like Nativescript, React Native, Apache Cordova, and many other hybrid tools. The developer community was more than overjoyed with the introduction of node.js in 2009 for backend development. It was a welcome relief for them as now they could use their beloved JS tech stack for the full web project instead of dealing with another programming language and while batting compatibility and scalability issues. Node.js is a backend tool that adjusts well with JS semantics and syntax.