diff --git a/problems/0347.前K个高频元素.md b/problems/0347.前K个高频元素.md
index 94b29eba..93d605f5 100644
--- a/problems/0347.前K个高频元素.md
+++ b/problems/0347.前K个高频元素.md
@@ -324,6 +324,34 @@ func topKFrequent(nums []int, k int) []int {
 
 ### JavaScript:
 
+解法一：  
+Leetcode 提供了优先队列的库，具体文档可以参见 [@datastructures-js/priority-queue](https://github.com/datastructures-js/priority-queue/blob/v5/README.md)。  
+
+```js
+var topKFrequent = function (nums, k) {
+  const map = new Map();
+  const res = [];
+  //使用 map 统计元素出现频率
+  for (const num of nums) {
+    map.set(num, (map.get(num) || 0) + 1);
+  }
+  //创建小顶堆
+  const heap = new PriorityQueue({
+    compare: (a, b) => a.value - b.value
+  })
+  for (const [key, value] of map) {
+    heap.enqueue({ key, value });
+    if (heap.size() > k) heap.dequeue();
+  }
+  //处理输出
+  while (heap.size()) res.push(heap.dequeue().key);
+  return res;
+};
+```
+
+解法二：  
+手写实现优先队列  
+
 ```js
 // js 没有堆 需要自己构造
 class Heap {