提供JavaScript版本的《将有序数组转换为二叉搜索树》

problems/0108.将有序数组转换为二叉搜索树.md

@@ -279,6 +279,36 @@ func sortedArrayToBST(nums []int) *TreeNode {
 }
 ```
 
+JavaScript版本
+
+```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 {number[]} nums
+ * @return {TreeNode}
+ */
+var sortedArrayToBST = function (nums) {
+    const buildTree = (Arr, left, right) => {
+        if (left > right)
+            return null;
+
+        let mid = Math.floor(left + (right - left) / 2);
+
+        let root = new TreeNode(Arr[mid]);
+        root.left = buildTree(Arr, left, mid - 1);
+        root.right = buildTree(Arr, mid + 1, right);
+        return root;
+    }
+    return buildTree(nums, 0, nums.length - 1);
+};
+```