New Features

tree shaking

react hook

react fragment

real-time applications

Context API

context is like a global value

use context.provider, then use this.context to get it

https://codesandbox.io/s/contextdemo-di5x7arrow-up-right

.When React renders a component that subscribes to this Context object it will read the current context value from the closest matching Provider above it in the tree.

Context.Provider

Context.Consumer

Last updated