day 12 task complete

Author: Sanchitbajaj02

day12/leetcode2723.js

@@ -0,0 +1,33 @@
+// 2723. Add Two Promises
+// URL -> https://leetcode.com/problems/add-two-promises
+
+/**
+ * @param {Promise} promise1
+ * @param {Promise} promise2
+ * @return {Promise}
+ */
+var addTwoPromises = async function (promise1, promise2) {
+  // Method 1.
+  // const resolve1 = await promise1;
+  // const resolve2 = await promise2;
+
+  // return new Promise(resolve => {
+  //   resolve(resolve1 + resolve2)
+  // })
+
+
+  // Method 2.
+  // let [val1, val2] = await Promise.all([promise1, promise2]);
+  // return val1 + val2;
+
+
+  // Method 3.
+  return Promise.all([promise1, promise2]).then(val => {
+    return val.reduce((prev, curr) => prev + curr, 0);
+  })
+};
+
+/**
+* addTwoPromises(Promise.resolve(2), Promise.resolve(2))
+*   .then(console.log); // 4
+*/