See how Stateful Widget differs from Stateless Widget with its ability to store a mutable state.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/20584295-stateful-vs-stateless-widgets-in-flutter/lessons/2
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/20584295-stateful-vs-stateless-widgets-in-flutter/lessons/2