为什么 state 在 setinterval 中单击按钮后没有更新反应？

Question

Could you please tell me why state is not updated? On button click I updated the state but when I console my state on setinterval it is not updated why?

Here is my code

https://codesandbox.io/s/cool-shamir-8lmpo

 <button
        onClick={() => {
          setState({
            filters: {
              apps: "DDDDDDH",
              searchText: "12333",
              taskType: "",
              dateFrom: "",
              dateTo: "",
              status: ""
            }
          });
        }}
      >


useEffect(() => {
    console.log("===============");
    setInterval(() => {
      console.log(state);
    }, 10000);
  }, []);

After button click searchText: "12333", searchtext should be 12333 in state but it is showing empty wny?

why the value of state in setinterval is not showing 12333

Answer 1

I think, this is what you want:

useEffect(() => {
  const interval = setInterval(() => {
    console.log(state);
  }, 10000);

  return () => clearInterval(interval);
}, [state]);