Markdium-JS 초보가 쓰는 async await 처음부터 이해하기

Markdium-javascript.js

function resolveAfter3Seconds() { // 3초 동안 대기하게 함
  return new Promise(resolve => {
    setTimeout(() => {
      resolve('resolved1');
    }, 3000);
  });
}

function resolveAfter2Seconds() { // 2초 동안 대기하게 함
  return new Promise(resolve => {
    setTimeout(() => {
      resolve('resolved2');
    }, 2000);
  });
}
async function printAsync1() {
  console.log('calling1');
  const result = await resolveAfter3Seconds();
  return result;
}

async function printAsync2() {
  console.log('calling2');
  const result = await resolveAfter2Seconds();
  return result;
}
const result1 = await printAsync1(); // 실제로는 불가능함
console.log(result1);
const result2 = await printAsync2(); // 실제로는 불가능함
console.log(result2);

// > "calling1"
// > "resolved1"
// > "calling2"
// > "resolved2"