Many moons ago, I was writing a lot of Flash applications. One thing was typical, and that was a progress indication of something that we were downloading. The loaded bytes of the Flash file (.swf) itself and later of some other resource the application needs. Once I started writing everything in JavaScript, this feature disappeared. In this post, we'll see how to implement it with vanilla JavaScript.

Recently I started questioning the state management in React applications. I’ve made some really interesting conclusions and in this article I’ll show you that what we call a state management may not be exactly about managing state.