export class Utils {
  public static countKeys(obj: any): number {
    let count = 0;

    for (let key in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, key)) {
        count++;
        if (typeof obj[key] === 'object' && obj[key] !== null) {
          count += Utils.countKeys(obj[key]);
        }
      }
    }

    return count;
  }
}