diff --git a/Miscellaneous/mongoDB.md b/Miscellaneous/mongoDB.md
index b54676d..b175771 100644
--- a/Miscellaneous/mongoDB.md
+++ b/Miscellaneous/mongoDB.md
@@ -55,9 +55,9 @@ db.createUser(
 )
 db.createUser(
   {
-    user: "yg",
-    pwd: "zV1pL8sP4nQ1",
-   roles: [ { role: "dbOwner", db: "yg" }]
+    user: "coc",
+    pwd: "qlSfefSor5",
+   roles: [ { role: "dbOwner", db: "coc" }]
   }
 )
 ```
diff --git a/Miscellaneous/test.js b/Miscellaneous/test.js
index e097741..85388b4 100644
--- a/Miscellaneous/test.js
+++ b/Miscellaneous/test.js
@@ -1,9 +1,15 @@
-class MyCoolArray extends Array {
-	first() { return this[0] }
-	last() { return this[this.length - 1] }
-}
-b = [1, 2, 3]
-a = new MyCoolArray(...b)
-console.log(a.first())
-console.log(a[2])
-console.log(b[-1])
\ No newline at end of file
+setTimeout(() => console.log('a'));
+Promise.resolve()
+	.then(
+		() => {
+			console.log('b');
+		}
+ ).then(
+			() => Promise.resolve('c').then(
+				(data) => {
+					setTimeout(() => console.log('d'));
+					console.log('f');
+					return data;
+				}
+			)
+		).then(data => console.log(data));
\ No newline at end of file