Hooks

React Hooks are functions that allow functional components in React to manage state, handle side effects, and access other React features without needing class components. They provide a simpler and more efficient way to manage component logic.

Simplifies Code: Hooks provide a simpler and cleaner way to write components by using functions instead of classes.
State and Side Effects: Hooks allow you to use state (useState) and side effects (useEffect) in functional components.
Reusability: Hooks make it easier to share logic across components by creating custom hooks.
Readability: Functional components with hooks tend to be more concise and easier to read than class components.

useState
The useState hook is used to declare state variables in functional components. It allows us to read and update the state within the component. It returns a state variable and a function to update that state.

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

state: It is the value of the current state.
setState: It is the function that is used to update the state.
initialState: It is the initial value of the state.

Reference Links:
https://www.geeksforgeeks.org/reactjs-hooks/
https://www.geeksforgeeks.org/reactjs/reactjs-usestate-hook/