@runicjs/runic-react/dist/hooks/useStore.js

Tools for working with Runic in React

import { useEffect, useState } from 'react';
import { defaultEqualityFn } from '../utils';
export default function useStore(store, 
// It's unfortunate that I have to resort to casting here.
selector = (v) => v, equalityFn = defaultEqualityFn) {
    const [value, setValue] = useState(selector(store.getState()));
    useEffect(() => {
        return store.subscribe((state) => {
            setValue((last) => {
                const next = selector(state);
                if (equalityFn(last, next))
                    return last;
                return next;
            });
        });
    }, [store, selector, equalityFn]);
    return value;
}