From 76646facde80038d0c9f9612cc00add02c48d4bf Mon Sep 17 00:00:00 2001
From: JayWll <jaywll@outlook.com>
Date: Sun, 23 Feb 2020 16:31:21 -0700
Subject: [PATCH] Video 95: Async/Await

---
 playground/9-async-await.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 playground/9-async-await.js

diff --git a/playground/9-async-await.js b/playground/9-async-await.js
new file mode 100644
index 0000000..de36668
--- /dev/null
+++ b/playground/9-async-await.js
@@ -0,0 +1,24 @@
+const add = (a, b) => {
+  return new Promise((resolve, reject) => {
+    setTimeout(() => {
+      if (a < 0 || b < 0) {
+        return reject('Numbers must be non-negative')
+      }
+
+      resolve(a + b)
+    }, 2000)
+  })
+}
+
+const doWork = async () => {
+  const sum = await add(1, -99)
+  const sum2 = await add(sum, 50)
+  const sum3 = await add(sum2, -3)
+  return sum3
+}
+
+doWork().then((result) => {
+  console.log('result', result)
+}).catch((e) => {
+  console.log('e', e)
+})