async / await

**// 기본 사용

async** function Name(){
	const response = **await** fetch('api url');
	const data = await response.json();
}

----

useEffect(() => {

    async function fetchData() {
      const response = await fetch("......");
      const json = await response.json();
      
      ...
      ...
    }

    fetchData();
  }, []);