From 4417f180dd0a77ce850ec236a2b430d8e185870b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BA=AA=E9=A3=9E?= <fei.jay@etank.cn>
Date: Tue, 18 May 2021 12:35:01 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20=E2=80=9C102.=E4=BA=8C?=
 =?UTF-8?q?=E5=8F=89=E6=A0=91=E7=9A=84=E5=B1=82=E5=BA=8F=E9=81=8D=E5=8E=86?=
 =?UTF-8?q?=E2=80=9DJavascript=E7=89=88=E6=9C=AC?=
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---
 problems/0102.二叉树的层序遍历.md | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/problems/0102.二叉树的层序遍历.md b/problems/0102.二叉树的层序遍历.md
index 0ab67b13..1cb4164f 100644
--- a/problems/0102.二叉树的层序遍历.md
+++ b/problems/0102.二叉树的层序遍历.md
@@ -687,6 +687,26 @@ func levelOrder(root *TreeNode) [][]int  {
 	return result
 }
 ```
+Javascript:
+```javascript
+var levelOrder = function (root) {
+  let ans = [];
+  if (!root) return ans;
+  let queue = [root];
+  while (queue.length) {
+    let size = queue.length;
+    let temp = [];
+    while (size--) {
+      let n = queue.shift();
+      temp.push(n.val);
+      if (n.left) queue.push(n.left);
+      if (n.right) queue.push(n.right);
+    }
+    ans.push(temp);
+  }
+  return ans;
+};
+```
 
 -----------------------
 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)