How do I modify state values in React with MobX-State-Tree?

Updating state is required for any React application. Jamon Holmgren (@JamonHolmgren), maintainer of MobX-State-Tree (MST), demonstrates how to modify state through actions with MST. Did you know... You can learn how to create React applications on Microsoft Learn: https://docs.microsoft.com/learn/paths/react/?WT.mc_id=WebWednesday-c9-niner