Learn React lazy, memo, useState and useEffect in 7 minutes

In React world, things are changing and they are changing rapidly.
If you'd like to get up to speed in what new APIs React has to offer and have literally 7 minutes to spare - this is a collection for you!

• Use React.lazy to do code-splitting with React Suspense
• Use React.memo to avoid unnecessary re-renders in React functional components
• Add state to functional React component with useState hook without introducing a class
• Use React useEffect hook to see how many times component mounts and unmounts