Page 67 - Nodejs 교과서 개정2판

BTZOD BXBJU

֢٘ ߡ੹ࠗఠ ૑ਗغח ӝמੑפ׮ &4 ীࢲ ୶оغ঻ਵݴ ঌইفݶ ੿݈ ಞܻೠ ӝמੑפ׮ ౠ൤ ֢

٘୊ۢ ࠺زӝ ਤ઱۽ ೐۽Ӓې߁ਸ ೧ঠ ೡ ٸ ب਑੉ ݆੉ ؾפ׮

೐۽޷झо ௒ߔ ૑ৠਸ ೧Ѿ೮׮૑݅ ৈ੹൤ ௏٘о ੢ട೤פ׮ thenҗ catchо ҅ࣘ ߈ࠂغӝ ٸޙੑפ׮

async await ޙߨ਷ ೐۽޷झܳ ࢎਊೠ ௏٘ܳ ೠ ߣ ؊ ӭՔೞѱ ઴ੑפ׮

੺੄ ೐۽޷झ ௏٘ܳ ׮द ೠ ߣ ࠁѷणפ׮

function findAndSaveUser(Users) {
Users.findOne({})
.then((user) => {
user.name = 'zero';
return user.save();
})
.then((user) => {
return Users.findOne({ gender: 'm' });
})
.then((user) => {
// 생략
})
.catch(err => {
console.error(err);
});
}

௒ߔҗ ׮ܰѱ ௏٘੄ Ө੉о Өয૑૓ ঋ૑݅ ௏٘ח ৈ੹൤ Ӥפ׮ BTZOD await ޙߨਸ ࢎਊೞݶ ׮਺җ э

੉ ߄Ե ࣻ ੓णפ׮ async function੉ۄח Ѫ੉ ୶оغ঻णפ׮

async function findAndSaveUser(Users) {
let user = await Users.findOne({});
user.name = 'zero';
user = await user.save();
user = await Users.findOne({ gender: 'm' });
// 생략
}

֥ۄ਎ ੿ب۽ ௏٘о ૣই઎णפ׮ ೣࣻ ࢶ঱ࠗܳ ੌ߈ ೣࣻ ؀न async functionਵ۽ Ү୓ೠ റ ೐۽޷झ