When are the React components re-rendered? Explain giving examples. 05

Question

C When are the React components re-rendered? Explain giving examples. 05

Answer 1

import React, { useState } from 'react';

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

  const increment = () => {
    setCount(count + 1);
  };

  return (
    <div>
      <p>Count: {count}</p>
      <button onClick={increment}>Increment</button>
    </div>
  );
}

export default Counter;

 

In this example, the Counter component has a state variable count. When you click the "Increment" button, it triggers a state change using setCount, leading to a re-render of the Counter component to reflect the updated count value in the UI.