Check if Strings Can be Made Equal With Operations I

export function canBeEqual(s1: string, s2: string): boolean {
  function isEqual<T>(set1: Set<T>, set2: Set<T>) {
    return set1.size === set2.size && [...set1].every((s) => set2.has(s));
  }
 
  return (
    isEqual(new Set([s1[0], s1[2]]), new Set([s2[0], s2[2]])) &&
    isEqual(new Set([s1[1], s1[3]]), new Set([s2[1], s2[3]]))
  );
}