react-native

ScrollView Optimization: To get rid of lagging/slow app, we will use FlatList insteadt of ScrollView so that app performance could be more better FlatList have a "data" Prop and "renderItem" prop, Flat List always work on Key property not on id We dont use map() in FlatList instead we use "data" and to access item one by one , we use renderItem In short, FlatList is much more optimized than ScrollView We cann not use styles for button tag, React native provide us a prop through which we can change its color/styles, i.e