getQuerySelector

It is almost the same as getQuery, the difference is that getQuery is the selector, while getQuerySelector is the selector creator - it just returns getQuery.

It is helpful when you need to provide a selector without props somewhere (like in useSelector React hook). So instead of doing useSelector(state => getQuery(state, { type: 'FETCH_BOOKS' })) you could just useSelector(getQuerySelector({ type: 'FETCH_BOOKS' })).