interactive exercises and examples.
React's eaglerly awaited Concurrent Mode can vastly improve user experience, but it requires a stricter way of writing components.
Even old-school class components allow you to compose component state. Hooks just make your life far, far simpler.
Navi is a new kind of router for React. It lets you declaratively map URLs to content, even when that content is asynchronous.
Hooks are a brand new API with a lot of hype. But don't let that fool you –
useContext() is incredibly useful.
You know how
catch work, but what about
finally? Does it run after rethrown exceptions or
CSS-in-JS can be a huge win for maintainability. But for large statically rendered websites, plain CSS still has its place.
Learn how and why to make a
useTimeTravel React hook that we can use to make Tolerant User Interfaces.