Group Anagram

Author: casentino

group-anagrams/casentino.ts

@@ -0,0 +1,13 @@
+function groupAnagrams(strs: string[]): string[][] {
+  const hashMap = new Map();
+  for (let i = 0; i < strs.length; i++) {
+    const key = Array.from(strs[i]).sort().join("");
+
+    if (!hashMap.has(key)) {
+      hashMap.set(key, [strs[i]]);
+    } else {
+      hashMap.get(key).push(strs[i]);
+    }
+  }
+  return Array.from(hashMap.values());
+}