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That's probably because the value of daysData is set asynchronously, yet the useEffect block that depends on it does not list it as a dependency. Therefore you are invoking logic, which requires daysData to be populated asynchronously, when the component is loaded at runtime. So daysData will be empty.

A solution is to simply add daysData in the dependency array, so that you will only execute whatever logic that is in there once the array is successfully populated.

On the other hand, you are comparing a number against an array: which will give an unexpected result. If you want any of the day to meet date + 1, use daysDay.some(d => date + 1 >= d). If you want all of the days to meet date + 1, use daysDate.every(d => date + 1 >= d).

useEffect(async () => {
  const daysDay = daysData.map((day) => day.day);

  // This needs to be fixed, see comment for options
  if (daysDay.some(d => date + 1 > d)) {
    // Url where to post
    await axios.post(`http://localhost:5001/open/chocolate`, {
      day: date,
    });
  }

  setOpenCalendarBox('');
}, [daysData]);

That's probably because the value of daysData is set asynchronously, yet the useEffect block that depends on it does not list it as a dependency. Therefore you are invoking logic, which requires daysData to be populated asynchronously, when the component is loaded at runtime. So daysData will be empty.

A solution is to simply add daysData in the dependency array, so that you will only execute whatever logic that is in there once the array is successfully populated.

On the other hand, you are comparing a number against an array: which will give an unexpected result. If you want any of the day to meet date + 1, use daysDay.some(d => date + 1 >= d). If you want all of the days to meet date + 1, use daysDate.every(d => date + 1 >= d).

useEffect(async () => {
  const daysDay = daysData.map((day) => day.day);

  // This needs to be fixed, see comment for options
  if (daysDay.some(d => date + 1 > d)) {
    // Url where to post
    await axios.post(`http://localhost:5001/open/chocolate`, {
      day: date,
    });
  }

  setOpenCalendarBox('');
}, [daysData]);

That's probably because the value of daysData is set asynchronously, yet the useEffect block that depends on it does not list it as a dependency. Therefore you are invoking logic, which requires daysData to be populated asynchronously, when the component is loaded at runtime. So daysData will be empty.

A solution is to simply add daysData in the dependency array, so that you will only execute whatever logic that is in there once the array is successfully populated.

On the other hand, you are comparing a number against an array: which will give an unexpected result. If you want any of the day to meet date + 1, use daysDay.some(d => date + 1 >= d). If you want all of the days to meet date + 1, use daysDate.all(d => date + 1 >= d).

useEffect(async () => {
  const daysDay = daysData.map((day) => day.day);

  // This needs to be fixed, see comment for options
  if (daysDay.some(d => date + 1 > d)) {
    // Url where to post
    await axios.post(`http://localhost:5001/open/chocolate`, {
      day: date,
    });
  }

  setOpenCalendarBox('');
}, [daysData]);

That's probably because the value of daysData is set asynchronously, yet the useEffect block that depends on it does not list it as a dependency. Therefore you are invoking logic, which requires daysData to be populated asynchronously, when the component is loaded at runtime. So daysData will be empty.

A solution is to simply add daysData in the dependency array, so that you will only execute whatever logic that is in there once the array is successfully populated.

On the other hand, you are comparing a number against an array: which will give an unexpected result. If you want any of the day to meet date + 1, use daysDay.some(d => date + 1 >= d). If you want all of the days to meet date + 1, use daysDate.every(d => date + 1 >= d).

useEffect(async () => {
  const daysDay = daysData.map((day) => day.day);

  // This needs to be fixed, see comment for options
  if (daysDay.some(d => date + 1 > d)) {
    // Url where to post
    await axios.post(`http://localhost:5001/open/chocolate`, {
      day: date,
    });
  }

  setOpenCalendarBox('');
}, [daysData]);

That's probably because the value of daysData is set asynchronously, yet the useEffect block that depends on it does not list it as a dependency. Therefore you are invoking logic, which requires daysData to be populated asynchronously, when the component is loaded at runtime. So daysData will be empty.

A solution is to simply add daysData in the dependency array, so that you will only execute whatever logic that is in there once the array is successfully populated:

useEffect(async () => {
  const daysDay = daysData.map((day) => day.day);

  if (date + 1 >= daysDay) {
    // Url where to post
    await axios.post(`http://localhost:5001/open/chocolate`, {
      day: date,
    });
  }

  setOpenCalendarBox('');
}, [daysData]);

That's probably because the value of daysData is set asynchronously, yet the useEffect block that depends on it does not list it as a dependency. Therefore you are invoking logic, which requires daysData to be populated asynchronously, when the component is loaded at runtime. So daysData will be empty.

A solution is to simply add daysData in the dependency array, so that you will only execute whatever logic that is in there once the array is successfully populated.

On the other hand, you are comparing a number against an array: which will give an unexpected result. If you want any of the day to meet date + 1, use daysDay.some(d => date + 1 >= d). If you want all of the days to meet date + 1, use daysDate.all(d => date + 1 >= d).

useEffect(async () => {
  const daysDay = daysData.map((day) => day.day);

  // This needs to be fixed, see comment for options
  if (daysDay.some(d => date + 1 > d)) {
    // Url where to post
    await axios.post(`http://localhost:5001/open/chocolate`, {
      day: date,
    });
  }

  setOpenCalendarBox('');
}, [daysData]);