13 a

#install
npx create-react-app task13
cd task13


#App.js

// App.js
import React from 'react';
import FunctionalComponent from './FunctionalComponent';
import ClassComponent from './ClassComponent';

function App() {
  return (
    <div>
      <h1>Task 13a: React Functional and Class Components</h1>
      <FunctionalComponent />
      <ClassComponent />
    </div>
  );
}

export default App;

#Class Component

// ClassComponent.js
import React, { Component } from 'react';

class ClassComponent extends Component {
  constructor() {
    super();
    this.state = { count: 0 };
  }

  componentDidMount() {
    console.log('Component Mounted');
  }

  componentDidUpdate() {
    console.log('Component Updated');
  }

  componentWillUnmount() {
    console.log('Component Will Unmount');
  }

  render() {
    return (
      <div>
        <h2>Class Component</h2>
        <p>Count: {this.state.count}</p>
        <button onClick={() => this.setState({ count: this.state.count + 1 })}>
          Increase
        </button>
      </div>
    );
  }
}

export default ClassComponent;

#fc

// FunctionalComponent.js
import React, { useState, useEffect } from 'react';

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

  useEffect(() => {
    console.log('Component mounted or updated');

    return () => {
      console.log('Component unmounted');
    };
  }, [count]);

  return (
    <div>
      <h2>Functional Component</h2>
      <p>Count: {count}</p>
      <button onClick={() => setCount(count + 1)}>Increase</button>
    </div>
  );
}

export default FunctionalComponent;