JavaScript版本的《二叉搜索树的最小绝对差》

problems/0530.二叉搜索树的最小绝对差.md

@@ -256,6 +256,39 @@ func findMIn(root *TreeNode,res *[]int){
 }
 ```
 
+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 {TreeNode} root
+ * @return {number}
+ */
+var getMinimumDifference = function (root) {
+    let arr = [];
+    const buildArr = (root) => {
+        if (root) {
+            buildArr(root.left);
+            arr.push(root.val);
+            buildArr(root.right);
+        }
+    }
+    buildArr(root);
+    let diff = arr[arr.length - 1];
+    for (let i = 1; i < arr.length; ++i) {
+        if (diff > arr[i] - arr[i - 1])
+            diff = arr[i] - arr[i - 1];
+    }
+    return diff;
+};
+```
 
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 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)