/Javascript/React/React usestate functional update

React usestate functional update

() => setCount(prevCount => prevCount - 1)

Source: reactjs.org

Update state in useState hook

// declare state using useState hook.
// someState is set to someInitialState
const [someState, setSomeState] = useState(someInitialState);

// setSomeState updates the current state 
setSomeState(someOtherState);

Source: reactjs.org

Similar codes

31 votes209 views1 answer
React router dom IndexRedirect
Javascript React
0 vote232 views1 answer
React password hashing
Javascript React
1 vote195 views4 answers
Passing data in route react
Javascript React
3 votes265 views1 answer
Showing an image in react js
Javascript React
0 vote218 views1 answer
How to use adminlte in reacts
Javascript React
98 votes225 views2 answers
Add bootstrap to react,.........,,,,
Javascript React
0 vote239 views1 answer
Duplicate module name: React Native hasteimpl react native android
Javascript React
0 vote206 views1 answer
React testing library Property 'value' does not exist on type 'HTMLElement'.ts(2339)
Javascript React
32 votes223 views6 answers
React copy array
Javascript React
0 vote213 views1 answer
Change value in array react
Javascript React