The article covers the elm vs react developer feedback loop which is highly important when developing software and web applications. It is also one of the hardest things to get right for web development with the rise of tools like Webpack and Rollup.js and SystemJS.
Elm is a fantastic programming language with an awesome feedback loop and when I was working with it, it was really fast to write code, reload it in the browser and test it out to make sure it’s doing what it’s supposed. React also has a pretty good feedback loop but it requires more setup with webpack to get it started.
I have written about Elm before (and have compared elm vs react before) and have worked on an Instagram clone tutorial in Elm and it was really fun to write. Part of that fun stems from how fast it was to get feedback while developing. If there were errors in my code, the Elm compiler revealed them almost immediately. If the code was right, I was able to jump back into the browser and test things very quickly.