Reactive Append to Array in React

Let's work with reactively adding elements to an array. For example, let's say we have an array that is output as a list ul:

function App() {
	const [notes, setNotes] = useState([1, 2, 3, 4, 5]);
	
	const result = notes.map((note, index) => {
		return <li key={index}>{note}</li>;
	});
	
	return <div>
		<ul>
			{result}
		</ul>
	</div>;
}

Make a button that, when clicked, will add a new element to the end of the array, thereby adding a new li to the end of the ul tag.

Make an input and a button. When the button is clicked, let the input text become a new tag li at the end of the tag ul.