May 11, 2020 · Let's create a custom hook that would return a current boolean state and a toggle method that is changing a boolean value and never gets re-created. Problem 1: The state update is an asynchronous process, so, in your case, you're updating the state for the first time by spreading the current state, then you're updating it for the second time, by spreading also the current state (not updated yet). . Learn all about React Hooks with this hands-on guide.