solve valid-anagram

Author: 1lsang

valid-anagram/1lsang.ts

@@ -0,0 +1,13 @@
+const getCountObj = (s: string) => {
+    const obj:Record<string, number> = {};
+    s.split('').forEach((v) => obj[v] ? obj[v]+=1 : obj[v] = 1);
+    return obj;
+}
+
+const isEqual = (a: Record<string, number>, b: Record<string, number>) => {
+    return Object.entries(a).every(([key, value]) => b[key] === value)
+}
+
+function isAnagram(s: string, t: string): boolean {
+    return s.length === t.length && isEqual(getCountObj(s), getCountObj(t));
+};