array methods

  peoContactExists(contact: PEOContact): boolean {
    const contactAddressId = contact.address.addressId;
    let contactExists = false;
    this.contacts.forEach(peoContact => {
      if (peoContact.address.addressId === contactAddressId) { contactExists = true; }
    });
    return contactExists;
  }

  peoContactExists(contact: PEOContact): boolean {
    return this.contacts.some(peoContact => peoContact.address.addressId === contact.address.addressId);
  }