diff --git a/docs/chapter_hashing/hash_map.md b/docs/chapter_hashing/hash_map.md
index 865a0e6f2..0985a8fa2 100755
--- a/docs/chapter_hashing/hash_map.md
+++ b/docs/chapter_hashing/hash_map.md
@@ -311,18 +311,17 @@ comments: true
```javascript title="hash_map.js"
/* 遍历哈希表 */
- // 遍历键值对 key->value
- for (const entry of map.entries()) {
- if (!entry) continue;
- console.info(entry.key + ' -> ' + entry.val);
+ console.info('\n遍历键值对 Key->Value');
+ for (const [k, v] of map.entries()) {
+ console.info(k + ' -> ' + v);
}
- // 单独遍历键 key
- for (const key of map.keys()) {
- console.info(key);
+ console.info('\n单独遍历键 Key');
+ for (const k of map.keys()) {
+ console.info(k);
}
- // 单独遍历值 value
- for (const val of map.values()) {
- console.info(val);
+ console.info('\n单独遍历值 Value');
+ for (const v of map.values()) {
+ console.info(v);
}
```
diff --git a/docs/index.md b/docs/index.md
index f0637c1c7..ae7d57a55 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -58,6 +58,12 @@ hide:
推荐语
+!!! quote
+
+ “如果我当年学数据结构与算法的时候有《Hello 算法》，学起来应该会简单10倍！”
+
+ **—— 李沐，亚马逊资深首席科学家**
+
!!! quote
“一本通俗易懂的数据结构与算法入门书，引导读者手脑并用地学习，强烈推荐算法初学者阅读。”
@@ -79,7 +85,6 @@ hide:
