solutions/2723-add-two-promises.js

/**
 * 2723. Add Two Promises
 * https://leetcode.com/problems/add-two-promises/
 * Difficulty: Easy
 *
 * Given two promises promise1 and promise2, return a new promise. promise1 and promise2
 * will both resolve with a number. The returned promise should resolve with the sum of
 * the two numbers.
 */

/**
 * @param {Promise} promise1
 * @param {Promise} promise2
 * @return {Promise}
 */
var addTwoPromises = async function(promise1, promise2) {
  return Promise.all([promise1, promise2]).then(([a, b]) => a + b);
};