export const isPhoneE164 = value => !!value.match(/^\+[1-9]\d{1,14}$/); export const isPhoneE164OrEmpty = value => isPhoneE164(value) || value === ''; export const shouldBeUrl = (value = '') => value ? value.startsWith('http') : true; export const isValidPassword = value => { const containsUppercase = /[A-Z]/.test(value); const containsLowercase = /[a-z]/.test(value); const containsNumber = /[0-9]/.test(value); const containsSpecialCharacter = /[!@#$%^&*()_+\-=[\]{}|'"/\\.,`<>:;?~]/.test( value ); return ( containsUppercase && containsLowercase && containsNumber && containsSpecialCharacter ); }; export const isNumber = value => /^\d+$/.test(value);