Refactoring 1

validations-1.js

const moment = require('moment');

const isInputPresent = input => {
  return input && typeof input === 'string' && input.trim().length > 0;
};

const isValidEmail = email => {
  const regex = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;

  return regex.test(String(email).toLowerCase());
};

const isValidName = name => {
  return name.match(/^[a-zA-Z_ ]+$/);
};

const isValidBirthday = birthday => {
  const date = moment(birthday, 'MM/DD/YYYY', true); // Enforce MM/DD/YYYY format
  const today = moment();

  return (
    date.isValid() && date.isBefore(today) && date.diff(today, 'years') < 100
  );
};

const handleValidations = inputs => {
  const { name, email, birthday } = inputs;
  const required = ['name', 'email', 'address', 'state', 'country', 'birthday'];

  let errors = {};

  required.forEach(field => {
    const input = inputs[field];

    if (!isInputPresent(input)) {
      errors[field] = `${field} is required`;
    }
  });

  if (!errors.email && !isValidEmail(email)) {
    errors.email = 'Invalid email';
  }

  if (!errors.name && !isValidName(name)) {
    errors.name = 'Invalid name';
  }

  if (!errors.birthday && !isValidBirthday(birthday)) {
    errors.birthday = 'Invalid birthday';
  }

  return errors;
};