take function in class component code example

Example 1: react native function

class Foo extends Component {
  handleClick() {
    console.log('Click happened');
  }
  render() {
    return <button onClick={this.handleClick.bind(this)}>Click Me</button>;
  }
}

Example 2: class to functional component react

// convert a class component to a functional component
class MyComponent extends React.Component {
	state: { 
      name: 'Bob' 
    }
	render() {
      return (
        <p>Hello, my name is {this.state.name}</p>
      );
    }
}

const MyComponent = () => {
  const [name, setName] = React.useState('Bob');
  return (<p>Hello, my name is {name}</p>);
}