From 4b1542f8643f63ca9a09103642c680e05996e1a8 Mon Sep 17 00:00:00 2001
From: Jack <zyj17715640603@gmail.com>
Date: Mon, 28 Feb 2022 21:02:53 +0800
Subject: [PATCH] =?UTF-8?q?1002=E6=9F=A5=E6=89=BE=E5=B8=B8=E7=94=A8?=
 =?UTF-8?q?=E5=AD=97=E7=AC=A6=E6=B7=BB=E5=8A=A0typescript?=
MIME-Version: 1.0
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---
 problems/1002.查找常用字符.md | 35 +++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/problems/1002.查找常用字符.md b/problems/1002.查找常用字符.md
index 7c5566d3..e3d4d774 100644
--- a/problems/1002.查找常用字符.md
+++ b/problems/1002.查找常用字符.md
@@ -253,6 +253,41 @@ var commonChars = function (words) {
 	return res
 };
 ```
+TypeScript
+```ts
+  console.time("test")
+  let str: string = ""
+  //设置一个用字母组成的map字典
+  let map = new Map<string, number>()
+  //给所有map设置初始值为0
+  let wordInitial: [string, number][] = words[0]
+    .split("")
+    .map((item) => [item, 0])
+  //如果有重复字母,就把重复字母的数量加1
+  for (let word of words[0]) {
+    map.set(word, map.has(word) ? map.get(word) + 1 : 1)
+  }
+  for (let i = 1; i < words.length; i++) {
+    const mapWord = new Map<string, number>(wordInitial)
+    for (let j = 0; j < words[i].length; j++) {
+      if (!map.has(words[i][j])) continue
+      //mapWord中的字母的个数不能高于当前map的个数,多于则不能添加
+      if (map.get(words[i][j]) > mapWord.get(words[i][j])) {
+        mapWord.set(
+          words[i][j],
+          mapWord.has(words[i][j]) ? mapWord!.get(words[i][j]) + 1 : 1
+        )
+      }
+    }
+    //每次重新初始化map
+    map = mapWord
+  }
+  for (let [key, value] of map) {
+    str += key.repeat(value)
+  }
+  console.timeEnd("test")
+  return str.split("")
+```
 GO
 ```golang
 func commonChars(words []string) []string {