React useState() hook introduction 🎣

#reactjs #course #tutorial

00:00:00 introduction
00:01:10 setup
00:01:57 import useState
00:02:25 update a string
00:05:38 initial state
00:05:58 increment a number
00:07:29 toggle a boolean
00:09:24 Counter program
00:13:14 Counter CSS
00:16:03 conclusion

// React hook = Special function that allows functional components
// to use React features without writing class components
// (useState, useEffect, useContext, useReducer, and more…)

// useState() = A React hook that allows the creation of a stateful variable
// AND a setter function to update its value in the Virtual DOM.
// [name, setName]