[RiaOh] WEEK 02 solutions

valid-anagram/RiaOh.js

@@ -1,10 +1,33 @@
+// leetCode 4기 답안
+// /**
+//  * @param {string} s
+//  * @param {string} t
+//  * @return {boolean}
+//  */
+// var isAnagram = function (s, t) {
+//   let resultS = [...s].sort();
+//   let resultT = [...t].sort();
+//   return resultS.join() === resultT.join();
+// };
+
 /**
  * @param {string} s
  * @param {string} t
  * @return {boolean}
  */
 var isAnagram = function (s, t) {
-  let resultS = [...s].sort();
-  let resultT = [...t].sort();
-  return resultS.join() === resultT.join();
+  if (s.length !== t.length) {
+    return false;
+  }
+
+  // s를 돌면서 t에 있으면 제거
+  let copyT = t;
+  for (let i = 0; i < s.length; i++) {
+    if (copyT.includes(s[i])) {
+      copyT = copyT.replace(s[i], "");
+    } else {
+      return false;
+    }
+  }
+  return true;
 };