Study Angular
Angular is a development platform, built on TypeScript As a platform, Angular includes: A component-based framework for building scalable web applications A collection of well-integrated libraries that cover a wide variety of features, including routing, forms management, client-server communication, and more A suite of developer tools to help you develop, build, test, and update your code Angular was developed by Google in 2016
NODE JS
Node.js adds the ability for JavaScript to interact with devices through its API written in C++, connect other external libraries written in different languages, providing calls to them from JavaScript code. Node.js is used primarily on the server, acting as a web server, but it is possible to develop desktop window applications (Linux, Windows and macOS) and even program microcontrollers (for example, tessel, low.js and Espruino) on Node.js.
REACT JS
An open source JavaScript library for developing user interfaces. React is developed and supported by Facebook, Instagram and a community of individual developers and corporations. React can be used to develop single page and mobile applications. Its goal is to provide high development speed, simplicity and scalability. As a library for developing user interfaces, React is often used with other libraries such as MobX, Redux and GraphQL