Dart 2 shorthand makes writing functional widgets super nice, especially for a React/Javascript heathen like myself. Why should I ever use Stateless Widgets? <img width="610" alt="screen shot 2018-07-11 at 12 24 06 pm" src="https://user-images.githubusercontent.com/666539/42586140-6604f2c4-8505-11e8-9389-3d0db7bd80a7.png">