use-init/lib/use-init.js

It's sorta like useMemo without your linter yelling at you

import { useRef } from "react";
function useInit(func) {
    const initRef = useRef({
        initialized: false
    });
    if (!initRef.current.initialized) {
        initRef.current.value = func();
        initRef.current.initialized = true;
    }
    return initRef.current.value;
}
export default useInit;