useForceUpdate in React with hooks.

useForceUpdate.js

// Put me somewhere accessible.
const useForceUpdate = () => {
	const [_, setState] = useState(0)
	return () => setState(val => val + 1)
}

// Example.
const Component = () => {
	const forceUpdate = useForceUpdate()

	const onClick = () => forceUpdate()
	
	return (
		<div onClick={onClick}>
			{Date.now()}	
		</div>
	)
}

Yep! I actually ran into a similar issue as a matter of fact. Completely forgot I still had this gist somewhere rotting, collecting dust.
The fix is enitrely the same as yours:

export const useForceUpdate = () => {
	const [_, setState] = useState(false)
	return () => setState(val => !val)
}

Thanks for reminding me this broken piece of code was still publicly available. I'll update it 😄