useJitRef.js

useJitRef.js

const none = {};
export function useJitRef(init) {
    const value = useRef(none);
    const ref = useLazyRef(() => ({
        get current() {
            if (value.current === none) {
                value.current = init();
            }
            return value.current;
        },
        set current(v) {
            value.current = v;
        }
    }));
    return ref;
}