@navikt/ds-react/esm/utils/hooks/useControllableState.js

React components from the Norwegian Labour and Welfare Administration.

// https://github.com/chakra-ui/chakra-ui/tree/5ec0be610b5a69afba01a9c22365155c1b519136/packages/hooks/use-controllable-state
import { useState } from "react";
import { useEventCallback } from "./useEventCallback.js";
/**
 * `useControllableState` returns the state and function that updates the state, just like React.useState does.
 */
export function useControllableState({ value: valueProp, defaultValue, onChange, }) {
    const onChangeProp = useEventCallback(onChange);
    const [uncontrolledState, setUncontrolledState] = useState(defaultValue);
    const controlled = valueProp !== undefined;
    const value = controlled ? valueProp : uncontrolledState;
    const setValue = useEventCallback((next) => {
        const setter = next;
        const nextValue = typeof next === "function" ? setter(value) : next;
        if (!controlled) {
            setUncontrolledState(nextValue);
        }
        onChangeProp(nextValue);
    });
    return [value, setValue];
}
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