Validation for react

validators.js

import moment from 'moment';

export const email = /^(([^<>()[\]\\.,;:\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,}))$/;

export const specialCharactersRegex = /^[0-9a-zA-Z _-]{1,30}$/;

export const required = value => (!value ? 'Required' : undefined);

export const isEqual = (value, compareValue) => (value === compareValue);

export const phone = /^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/;

export const website = /^(?:(?:https?|ftp):\/\/)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})))(?::\d{2,5})?(?:\/\S*)?$/;

export const matchRegEx = (value, pattern) => (value && pattern && value.match(pattern));

export const minValue = (value, min) =>
  (
    value && value.length < min ? `Must be at least ${min}` : undefined
  );

export const hasChildren = value => (value && value.length > 0 ? undefined : 'Required');

export const compare = (expectedSmaller, expectedGreater) => (expectedSmaller <= expectedGreater);

export const compareDate = (firstDate, secondDate) => !moment(firstDate).isBefore(secondDate);

export const numeric = /^[0-9]?[0-9]{1}$|^100$/;