Congratulations! You've finished the final chapter of React Native by Example. In this chapter, you learned to use more of the React Native library by working on components and APIs that we did not fit into previous apps in the book.
Specifically, you built a playground app where you learned how to use the fetch API to make requests to external resources for data and gained control of the Vibration API to control the vibration motor of a user's device.
Afterward, you used the Linking API to open third-party applications on both iOS and Android, which allowed your app to talk to others. Then, you built a Slider component that lets users select a value between two predetermined ones.
Finishing the playground app, you created Buttons ...