feat : valid-anagram 풀이완료

Author: KyoJin-Hwang

valid-anagram/Kyojin-Hwang.js

@@ -0,0 +1,21 @@
+/**
+ * @param {string} s
+ * @param {string} t
+ * @return {boolean}
+ */
+var isAnagram = function(s, t) {
+    if (s.length !== t.length) return false;
+
+    const count = {};
+
+    for (let char of s) {
+        count[char] = (count[char] || 0) + 1;
+    }
+
+    for (let char of t) {
+        if (!count[char]) return false; // 없거나 개수가 0
+        count[char]--;
+    }
+
+    return true;
+};