Angular / React native
What is useFocusEffect hook in React navigation?
The useFocusEffect is analogous to React's useEffect hook. The only difference is that it only runs if the screen is currently focused.
The useFocusEffect hook runs the effect as soon as the screen comes into focus. The effect will run whenever the dependencies passed to React.useCallback change, i.e. it'll run on the initial render (if the screen is focused) as well as on subsequent renders if the dependencies have changed.
Dogecoin! Earn free bitcoins up to $250 now by signing up.
Earn bitcoins upto $250 (free), invest in other Cryptocurrencies when you signup with blockfi. Use the referral link: Signup now and earn!
Using BlockFi, don't just buy crypto - start earning on it. Open an interest account with up to 8.6% APY, trade currencies, or borrow money without selling your assets.
Invest now!!! Get Free equity stock (US, UK only)!
Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.
The Robinhood app makes it easy to trade stocks, crypto and more.
More Related questions...