Middle
Name the basic React hooks and what they are used for.
sobes.tech AI
Answer from AI
Basic React hooks and their purpose:
-
useState— allows adding state to functional components. -
useEffect— manages side effects, such as data loading or subscriptions. -
useContext— provides access to React context for passing data without props. -
useReducer— an alternative to useState for complex state logic. -
useRef— creates a mutable object that persists between renders, often used for DOM access.
Example of using useState and useEffect:
import React, { useState, useEffect } from 'react';
function Counter() {
const [count, setCount] = useState(0);
useEffect(() => {
document.title = `You clicked ${count} times`;
}, [count]);
return (
<div>
<p>You clicked {count} times</p>
<button onClick={() => setCount(count + 1)}>
Click me
</button>
</div>
);
}