Safely setState on a Mounted React Component through the useEffect Hook
In the class version of this component, we had a method called safeSetState which would check whether the component was still mounted before trying to call setState. This is because our graphql client library is unable to cancel in-flight requests. Let's make that same kind of thing work by tracking the mounted state of our component using the useRef and useEffect hooks.
Gonzalo Pozzo
~ 6 years ago
What is the difference of storing the old value using useRef instead of using a useState?
Kent C. Doddsinstructor
~ 5 years ago
When you call the state updater from useState, you force a re-render. When the value of a ref is updated, no re-render happens. Use the hooks accordingly.
V School
~ 5 years ago
Okay, thanks Kent