Ionic 4 takes the original Ionic toolkit from a mobile-centric framework based on Angular to a powerful, web-based UI design system and app-development toolset that is javascript-framework agnostic. The increased performance of Ionic 4 components makes the framework ideal for developing progressive web apps (PWAs), which are in high demand and popularity these days. With Ionic 4 Succinctly, Ed Freitas will focus on progressive web apps and show you how you can use Ionic 4 to build one, using Vue as the javascript framework.