Changing Data with a Function in React

It is not necessary to perform any operations on the state directly on the output. You can use the function:

function square(num) {
	return num ** 2;
}

function App() {
	const [value, setValue] = useState(0);
	
	function handleChange(event) {
		setValue(event.target.value);
	}
	
	return <div>
		<input value={value} onChange={handleChange} />
		<p>{square(value)}</p>
	</div>;
}

Given an input and a paragraph. The user's age is entered into the input. Make it so that when typing, the user's year of birth automatically appears in the paragraph.

Given an input and a paragraph. The input contains degrees Fahrenheit. Make it so that when you type text, the paragraph automatically converts to degrees Celsius.