forEach 는 await 대기하지 않음 res.data.result_data['progressLists'].forEach(async row => { let index = await items.findIndex(i => i['IP_CODE'] == row['IP_CODE']); if (index > -1) { items[index]['schedules'].push(row); console.log(items[index]['schedules'][0]['PROGRESS_CODE']); } }); 대치 for (const row of res.data.result_data['progressLists']) { const index = await items.findIndex(i => i['IP_CODE'] == r..