Leveling up our screens

Let's see what kind of app we're going to create. I was thinking we could have a screen where it shows our current age down to months, days, hours, and minutes. I mean, that's pretty cool, right? Whenever someone asks you your age, you'll be able to just take your phone out of your pocket and show them the screen you've created. Let's get started:

1. Let's open up our terminal and create a new expo managed project just like we always do, using the following command:

   expo init RealAge

   Now let's open up our project and start writing some code!

2. Let's go straight to the App.js file and delete everything in there besides the imports and StyleSheet. I always leave the StyleSheet because I'm a fan of centered text.
3. Now let's rewrite the App component as a class component.

   Figure 7.5 – App.js rewritten as a class component

4. Now let's open up our Expo app by using the following command...