Refactoring 2

validations-2.js

const getValidators = () => {
  return [
    {
      field: 'name',
      validations: [
        [isInputPresent, 'Name is required'],
        [isValidName, 'Invalid name']
      ]
    },
    {
      field: 'email',
      validations: [
        [isInputPresent, 'Email is required'],
        [isValidEmail, 'Invalid email']
      ]
    },
    {
      field: 'address',
      validations: [[isInputPresent, 'Address is required']]
    },
    {
      field: 'state',
      validations: [[isInputPresent, 'State is required']]
    },
    {
      field: 'country',
      validations: [[isInputPresent, 'Country is required']]
    },
    {
      field: 'birthday',
      validations: [
        [isInputPresent, 'Date of birth is required'],
        [isValidBirthday, 'Invalid date of birth']
      ]
    }
  ];
};

const handleValidations = inputs => {
  const validators = getValidators();

  return validators.reduce((result, { field, validations }) => {
    const input = inputs[field];

    return validations.reduce((acc, [isValid, err]) => {
      if (!acc[field] && !isValid(input)) {
        return {
          ...acc,
          [field]: err
        };
      } else {
        return acc;
      }
    }, result);
  }, {});
};