How do I use the useState hook in React?

How do I use the useState hook in React?

The useState hook is a built-in React hook that allows you to add state to functional components. You can use it like this: const [state, setState] = useState(initialValue);.

Can you give me an example of how to implement it?

Sure! Here's a simple example:

import React, { useState } from 'react';

function Counter() {
  const [count, setCount] = useState(0);

  return (
    <div>
      <p>You clicked {count} times</p>
      <button onClick={() => setCount(count + 1)}>Click me</button>
    </div>
  );
}

This creates a counter that increments when you click the button.

What happens if I don't provide an initial value?

If you don't provide an initial value, the state will be undefined by default. It's generally a good practice to provide an initial value to avoid unexpected behavior.

Can I use multiple useState hooks in one component?

Yes, you can use multiple useState hooks in a single component. Just call useState as many times as you need, each with its own state variable.