From b461cf71587352d713a61e5a5d3f56d72a100019 Mon Sep 17 00:00:00 2001
From: kok-s0s <2694308562@qq.com>
Date: Fri, 25 Jun 2021 22:56:08 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BE=9BJavaScript=E7=89=88=E6=9C=AC?=
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---
 .../0450.删除二叉搜索树中的节点.md | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/problems/0450.删除二叉搜索树中的节点.md b/problems/0450.删除二叉搜索树中的节点.md
index 3ed44c0a..1cd3d370 100644
--- a/problems/0450.删除二叉搜索树中的节点.md
+++ b/problems/0450.删除二叉搜索树中的节点.md
@@ -359,6 +359,51 @@ func deleteNode1(root *TreeNode)*TreeNode{
 }
 ```
 
+JavaScript版本
+
+> 递归
+
+```javascript
+/**
+ * Definition for a binary tree node.
+ * function TreeNode(val, left, right) {
+ *     this.val = (val===undefined ? 0 : val)
+ *     this.left = (left===undefined ? null : left)
+ *     this.right = (right===undefined ? null : right)
+ * }
+ */
+/**
+ * @param {TreeNode} root
+ * @param {number} key
+ * @return {TreeNode}
+ */
+var deleteNode = function (root, key) {
+    if (root === null)
+        return root;
+    if (root.val === key) {
+        if (!root.left)
+            return root.right;
+        else if (!root.right)
+            return root.left;
+        else {
+            let cur = root.right;
+            while (cur.left) {
+                cur = cur.left;
+            }
+            cur.left = root.left;
+            let temp = root;
+            root = root.right;
+            delete root;
+            return root;
+        }
+    }
+    if (root.val > key)
+        root.left = deleteNode(root.left, key);
+    if (root.val < key)
+        root.right = deleteNode(root.right, key);
+    return root;
+};
+```