5 min read
•Question 4 of 48easyuseState Hook
Managing state in functional components.
What is useState?
useState is a Hook that lets you add state to functional components. It returns an array with the current state value and a function to update it.
Syntax
code.jsJavaScript
const [state, setState] = useState(initialValue);Key Points
- State updates are asynchronous
- Use functional updates when new state depends on previous state
- State updates trigger re-renders