diff --git a/problems/0027.移除元素.md b/problems/0027.移除元素.md
index 3772d754..5cfdb68d 100644
--- a/problems/0027.移除元素.md
+++ b/problems/0027.移除元素.md
@@ -131,7 +131,20 @@ Python：
 Go：
 
 
-
+JavaScript:
+```
+//时间复杂度O(n)
+//空间复杂度O(1)
+var removeElement = (nums, val) => {
+    let k = 0;
+    for(let i = 0;i < nums.length;i++){
+        if(nums[i] != val){
+            nums[k++] = nums[i]
+        }
+    }
+    return k;
+};
+```
 
 -----------------------
 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)
diff --git a/problems/0209.长度最小的子数组.md b/problems/0209.长度最小的子数组.md
index c3937d7b..1b00c4e3 100644
--- a/problems/0209.长度最小的子数组.md
+++ b/problems/0209.长度最小的子数组.md
@@ -156,7 +156,22 @@ Python：
 Go：
 
 
-
+JavaScript:
+```
+var minSubArrayLen = (target, nums) => {
+    let left = 0, right = 0,win = Infinity,sum = 0;
+    while(right < nums.length){
+       sum += nums[right];
+       while(sum >= target){
+           win = right - left + 1 < win? right - left + 1 : win;
+           sum -= nums[left];
+           left++;
+       }
+       right++;
+    }
+    return win === Infinity? 0:win;
+};
+```
 
 -----------------------
 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)