From b85700890227fa69a7ca506384e7e8a821530675 Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Fri, 1 Apr 2022 12:08:26 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=880090.=E5=AD=90?=
 =?UTF-8?q?=E9=9B=86II.md=EF=BC=89=EF=BC=9A=E5=A2=9E=E5=8A=A0typescript?=
 =?UTF-8?q?=E7=89=88=E6=9C=AC?=
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Content-Type: text/plain; charset=UTF-8
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---
 problems/0090.子集II.md | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/problems/0090.子集II.md b/problems/0090.子集II.md
index 16bd1f2c..6469f4ba 100644
--- a/problems/0090.子集II.md
+++ b/problems/0090.子集II.md
@@ -319,6 +319,28 @@ var subsetsWithDup = function(nums) {
 
 ```
 
+### TypeScript
+
+```typescript
+function subsetsWithDup(nums: number[]): number[][] {
+    nums.sort((a, b) => a - b);
+    const resArr: number[][] = [];
+    backTraking(nums, 0, []);
+    return resArr;
+    function backTraking(nums: number[], startIndex: number, route: number[]): void {
+        resArr.push(route.slice());
+        let length: number = nums.length;
+        if (startIndex === length) return;
+        for (let i = startIndex; i < length; i++) {
+            if (i > startIndex && nums[i] === nums[i - 1]) continue;
+            route.push(nums[i]);
+            backTraking(nums, i + 1, route);
+            route.pop();
+        }
+    }
+};
+```
+
 ### C 
 
 ```c
@@ -388,7 +410,7 @@ int** subsetsWithDup(int* nums, int numsSize, int* returnSize, int** returnColum
 }
 ```
 
-## Swift
+### Swift
 
 ```swift
 func subsetsWithDup(_ nums: [Int]) -> [[Int]] {