[js] Promise.allSettled()

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled

Promise.allSettled() - JavaScript | MDN

 

Promise.allSettled는 JavaScript에서 여러 개의 약속을 동시에 처리하는 데 유용한 메서드이며,

모든 약속이 해결되거나 거부될 때까지 기다릴 수 있습니다.

 

// Create some sample promises
const promise1 = new Promise((resolve, reject) => setTimeout(resolve, 100, 'Promise 1 resolved'));
const promise2 = new Promise((resolve, reject) => setTimeout(reject, 200, 'Promise 2 rejected'));
const promise3 = new Promise((resolve, reject) => setTimeout(resolve, 300, 'Promise 3 resolved'));

// Use Promise.allSettled to handle all promises
Promise.allSettled([promise1, promise2, promise3])
  .then((results) => {
    results.forEach((result, index) => {
      if (result.status === 'fulfilled') {
        console.log(`Promise ${index + 1} fulfilled with value: ${result.value}`);
      } else if (result.status === 'rejected') {
        console.log(`Promise ${index + 1} rejected with reason: ${result.reason}`);
      }
    });
  });