this setstate previous state react
state = {count: 0}
increment = () => {
this.setState(previousState => ({
count: previousState.count + 1
}))
}this setstate previous state react
state = {count: 0}
increment = () => {
this.setState(previousState => ({
count: previousState.count + 1
}))
}usestate access previous state
const [arrayOfObjs, handleObjSelection] = useState([]);
// on a buttton for example
<button
onClick={selectedObj => handleObjSelection(
prevSelected => [...prevSelected, selectedObj],
))}
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