10 examples of 'react usestate callback' in JavaScript

11
function useStateCallback(setState, fn) {
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    return useCallback((...args) => (
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        setState((s) => fn(s, ...args))
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    ), [setState, fn])
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}

25
export default function useCallbackRef(): [
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  TValue | null,
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  (ref: TValue | null) => void,
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] {
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  return useState(null)
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}

70
export function useState(initialState) {
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  return useReducer(invokeOrReturn, initialState);
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}

38
export function useRef(current) {
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    let [state] = useState({ current });
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    return state;
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}

3
export function useStateRef<s>(initialState: S | (() =&gt; S)) {
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  const [value, update] = useState(initialState)
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  const ref = useRef({ value, update })
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  ref.current.value = value
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  ref.current.update = update
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  return ref.current
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}</s>

68
export function useIsMounted() {
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  const isMountedRef = useRef(false);
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  const isMounted = useCallback(() => {
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    return isMountedRef.current;
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  }, []);
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  useEffect(() => {
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    isMountedRef.current = true;
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    return () => {
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      isMountedRef.current = false;
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    };
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  }, []);
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  return isMounted;
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}

74
function useWillMount(callback) {
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  const rendered = React.useRef(false)
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  if (!rendered.current) {
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    callback()
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  }
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  rendered.current = true
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}

40
function useState(...args) {
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  return isFunctional() ? _useState(...args) : useClassState(...args);
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}

110
export function useCallback(
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  callback: () => mixed,
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  inputs: Array | void | null,
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) {
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  const dispatcher = resolveDispatcher();
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  return dispatcher.useCallback(callback, inputs);
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}

75
export function useState<s>(initialState: (() =&gt; S) | S) {
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  const dispatcher = resolveDispatcher();
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  return dispatcher.useState(initialState);
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}</s>