Competa

React can build lightweight front-end applications in minutes. Being less opinionated about application architecture, I notice that I actually spend less time on boilerplate code and can focus on the actual delivery of the product. In combination with TypeScript, it boosts development many times

RxJS is an awesome implementation of the "Observer" design pattern. Besides that, it plays really well in side effects of state management.

Ionic brings the whole toolbox to build modern mobile UI equally beautiful and neat for iOS and material design guidelines. Since Ionic supports React, that was a perfect match for our PWA app.

TypeScript is obviously superior to JavaScript. It shines especially bright in large projects with several developers being involved. Being "typesafe" - is that what we all need on front-end for years. Developers who tried TypeScript never choose vanilla JS for their next project.