Add solution #2723

Author: JoshCrozier

2723-add-two-promises.js

@@ -0,0 +1,18 @@
+/**
+ * 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);
+};

README.md

@@ -440,6 +440,7 @@
 2715|[Timeout Cancellation](./2715-timeout-cancellation.js)|Easy|
 2721|[Execute Asynchronous Functions in Parallel](./2721-execute-asynchronous-functions-in-parallel.js)|Medium|
 2722|[Join Two Arrays by ID](./2722-join-two-arrays-by-id.js)|Medium|
+2723|[Add Two Promises](./2723-add-two-promises.js)|Easy|
 2724|[Sort By](./2724-sort-by.js)|Easy|
 3042|[Count Prefix and Suffix Pairs I](./3042-count-prefix-and-suffix-pairs-i.js)|Easy|
 3110|[Score of a String](./3110-score-of-a-string.js)|Easy|