ReactHooks.md

React File Structure

react-todo-app
    ├── node_modules
    ├── public
    │    ├── favicon.ico
    │    ├── index.html
    │    ├── logo192.png
    │    ├── logo512.png
    │    ├── manifest.json
    │    └── robots.txt
    ├── src
    │    ├── App.css
    │    ├── App.js
    │    ├── App.test.js
    │    ├── index.css
    │    ├── index.js
    │    ├── logo.svg
    │    ├── reportWebVitals.js
    │    └── setupTest.js
    ├── .gitignore
    ├── package.json
    ├── README.md
    └── yarn.lock

ReactHooks

React Hooks (introduced in React since version 16.8) are JavaScript functions that allow us to build our React component ONLY with function.

It’s birth to solve some of the complications associated with the class logic.

Basic Hooks

• useState
• useEffect
• useContext

Additional Hooks

• useReducer
• useCallback
• useMemo
• useRef
• useImperativeHandle
• useLayoutEffect
• useDebugValue

useState

const [state, setState] = useState(initialState);