solve valid anagram

Author: JangAyeon

valid-anagram/JangAyeon.js

@@ -0,0 +1,31 @@
+/**
+ * @param {string} s
+ * @param {string} t
+ * @return {boolean}
+ */
+var isAnagram = function (s, t) {
+  const sCounter = new Map();
+  for (let e of s) {
+    // console.log(e)
+    const value = sCounter.has(e) ? sCounter.get(e) + 1 : 1;
+    sCounter.set(e, value);
+  }
+  console.log(sCounter);
+
+  for (let e of t) {
+    if (!sCounter.has(e)) {
+      return false;
+    }
+    const value = sCounter.get(e);
+    if (value - 1 < 0) {
+      return false;
+    }
+    if (value - 1 == 0) {
+      sCounter.delete(e);
+    } else {
+      sCounter.set(e, value - 1);
+    }
+  }
+  const notAllused = [...sCounter.keys()].length;
+  return !notAllused;
+};