電話番号を扱う技術libphonenumberͷίί͕ੌ͍ TelephoneNumber.valid?('8180XXXXXXXX') # => true TelephoneNumber.valid?('+81 80 XXXX XXXX') # => true TelephoneNumber.valid?('080 XXXX XXXX', 'JP') # => true require 'telephone_number' telephone_number = TelephoneNumber.parse('8180XXXXXXXX') telephone_number.e164_number # => +8180XXXXXXXX telephone_number.national_number # => 080-XXXX-XXXX telephone_number.country.country_id #
