MobX tutorial #2 - Computed Values and Nested/Referenced Observables

MobX is AWESOME. It makes React.js programming fun and it.just.works. Get the code here:
GET THE CODE:
https://github.com/learncodeacademy/react-js-tutorials/tree/master/6-mobx-react
THERE ARE 2 BRANCHES: "master" for where we end up and "start" for where we start.
MobX builds on the concept of observable values. When React observes a value, it can automatically update the UI whenever the value changes. This makes programming with MobX and Reactjs extremely simple.
All it takes to begin is to install mobx and mobx-react and make sure that you are transforming class properties and decorators in Babel.
Now, you simply add @observable to your MobX class and you've successfully built a MobX observable store.
To "observe" the store, you pass in a MobX store as a prop and you decorate your React component with the @observer decorator.
Voila.you're reacting to store changes in React.
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Also watch: "Tailwind CSS - why CSS utility classes save so much time"
https://www.youtube.com/watch?voU5ar0dmQEY
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