feat: add ts solution to lc problem: No.0049

No.0049.Group Anagrams

Author: YangFong

solution/0000-0099/0049.Group Anagrams/README.md

@@ -107,6 +107,17 @@ function groupAnagrams(strs: string[]): string[][] {
 }
 ```
 
+```ts
+function groupAnagrams(strs: string[]): string[][] {
+    const map = new Map<string, string[]>();
+    for (const str of strs) {
+        const k = str.split('').sort().join('');
+        map.set(k, (map.get(k) ?? []).concat([str]));
+    }
+    return [...map.values()];
+}
+```
+
 ### **C++**
 
 ```cpp

solution/0000-0099/0049.Group Anagrams/README_EN.md

@@ -78,6 +78,17 @@ function groupAnagrams(strs: string[]): string[][] {
 }
 ```
 
+```ts
+function groupAnagrams(strs: string[]): string[][] {
+    const map = new Map<string, string[]>();
+    for (const str of strs) {
+        const k = str.split('').sort().join('');
+        map.set(k, (map.get(k) ?? []).concat([str]));
+    }
+    return [...map.values()];
+}
+```
+
 ### **C++**
 
 ```cpp