diff --git a/codes/javascript/chapter_tree/binary_search_tree.js b/codes/javascript/chapter_tree/binary_search_tree.js
index 332525f..74b7250 100644
--- a/codes/javascript/chapter_tree/binary_search_tree.js
+++ b/codes/javascript/chapter_tree/binary_search_tree.js
@@ -7,7 +7,7 @@
 const Tree = require("../include/TreeNode");
 const { printTree } = require("../include/PrintUtil");
 
- /* 二叉搜索树 */
+/* 二叉搜索树 */
 var root;
 
 function BinarySearchTree(nums) {
@@ -143,4 +143,4 @@ console.log("\n删除结点 2 后，二叉树为\n");
 printTree(getRoot());
 remove(4);
 console.log("\n删除结点 4 后，二叉树为\n");
-printTree(getRoot());
\ No newline at end of file
+printTree(getRoot());