Method isSupersetOf

src/07-set/set.ts:169–174

* Returns true if every element of otherSet is also in this set. * @param otherSet - The potential subset * @returns Whether this set is a superset of otherSet * @complexity Time O(n) | Space O(1)

(otherSet: MySet)

   * @complexity Time O(n) | Space O(1)
   */
  isSupersetOf(otherSet: MySet): boolean {
    if (this.size < otherSet.size) {
      return false;
    }
    return otherSet.values().every(value => this.has(value));
  }

  /**
   * Returns a comma-separated string of all set values.