What happens if I call a hook inside a nested function

1. Hooks are not designed to be called inside nested functions:
- Hooks are designed to be called at the top level of a function component. They are not meant to be called inside nested functions or loops.

2. Hooks are not preserved across renders:
- When you call a hook inside a nested function, the hook is not preserved across renders. This means that the state or side effects managed by the hook are not preserved.

3. Hooks can lead to infinite loops:
- If you call a hook inside a nested function, it can lead to infinite loops. This is because the hook is called repeatedly, causing the function to be re-executed.

4. Hooks can lead to unexpected state updates:
- When you call a hook inside a nested function, the state updates managed by the hook can be unexpected. This is because the hook is called at different times, causing the state to be updated incorrectly.

5. Hooks can lead to errors:
- Calling a hook inside a nested function can lead to errors. This is because the hook is not designed to be called in this way, and React does not provide any guarantees about the behavior of the hook in this situation.

To avoid these issues, it is recommended to call hooks at the top level of a function component, before any early returns. This ensures that the hooks are called in the same order each time the component renders, and that the state and side effects managed by the hooks are preserved correctly[1][3].

Here is an example of how to call a hook at the top level of a function component:

javascript
import React, { useState } from 'react';

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

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

In this example, the `useState` hook is called at the top level of the `Example` function component. This ensures that the state is preserved correctly and that the component behaves as expected[1][3].