The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place.

The false promise of your source code repository is that everything it contains is “good.” To complete your task, just find something that does something similar, copy, modify, and you’re done. Looking inside the same repository seems like a safety mechanism for quality but, in fact, there is no such guarantee.

React hook for creating a value exactly once. useMemo doesn't give this guarantee unfortunately - https://reactjs.org/docs/hooks-faq.html#how-to-create-expensive-objects-lazily

However, it only serves as a hint, and doesn’t guarantee the computation won’t re-run. But sometimes you need to be sure an object is only created once.