Creates (once) and returns a store for a definition — a graph, a hub, or anything else carrying createStore.
createStore
The store is stable across renders; ext is pushed in only when it actually differs, so callers can pass a fresh object literal every render.
ext
Creates (once) and returns a store for a definition — a graph, a hub, or anything else carrying
createStore.The store is stable across renders;
extis pushed in only when it actually differs, so callers can pass a fresh object literal every render.