Why React Hooks
Full Presentation can be found at: Why React Hooks
Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class.
React 16.8 comes with builtin basic Hooks that you can use to build your custom components for doing advanced state management and lifecycle functions.
Completely opt-in. You can try Hooks in a few components without rewriting any existing code. But you don’t have to learn or use Hooks right now if you don’t want to.
100% backward-compatible. Hooks don’t contain any breaking changes.
Available now. Hooks are now available with the release of v16.8.0.