Форматирование телефонного номера ( Россия )

phone_mask.js

// We use jquery.inputmask plugin to apply mask for the phone number.
// Plugin page: https://github.com/RobinHerbots/jquery.inputmask

var maskPhone, setPhoneFormValidation, phoneForm, phoneInput;

phoneForm = function() {
  return $('.js-phone-block > form');
}

phoneInput = function() {
  return $('#phone_input');
}

setPhoneFormValidation = function() {
  return phoneNumbernnput.on('submit', function(e) {
    var phone;
    phone = phoneInput().val().replace(/[^\d.]/g, "");
    if (!phone) {
      alert('Empty phone');
      e.preventDefault();
      return false;
    }
    return true;
  });
};

maskPhone = function() {
  var mask, phone, phone_field;
  phone_field = phoneInput();
  phone = phone_field.inputmask('unmaskedvalue');
  mask = '+7(999)999-99-99';
  return phone_field.inputmask('remove').val(phone).inputmask('mask', {
    'mask': mask
  });
};