I've got a very simple function set up to (eventually) load data from

So I guess I have a couple of questions. Is this to be expected? If so, should I be expiring my promises somehow (I haven't found any examples of that yet)? If this isn't to be expected, what am I doing wrong?

CodePudding user response：

Effects need a list of dependencies as their second param.

  // Calling poll in the render loop is surely a mistake
  // const loadedValuePromise: Promise<any> = poll("some.key");

  const updateValue = async () => {
    poll("some.key").then((v) => {
      setRefreshCount(refreshCount   1);
      console.log("then count: "   refreshCount);
      setValue(v);
    });
  };

  useEffect(() => {
      setInterval(() => {
        updateValue();
      }, 2000);
  // An effect with an empty list of dependencies will run once on mount
  // and then never again.
  }, []);