async/await as IIFE

Example of utilizing IIFE (Immediately Invoked Function Expressions)

The above is better than below!

  useEffect(() => { ///문자열 '' -> false
    setIsLoading(true);
    (async () => {
      const result = await getFlight(condition);
      setFlightList(result);
      setIsLoading(false);
    })();

    // async function updateFlightFilter(){
    //   const result = await getFlight(condition);
    //   setFlightList(result);
    //   setIsLoading(false);
    // }
    // updateFlightFilter();
  }, [condition]);