JPTelFormatter 日本の電話番号をハイフン区切りに変換 超高機能なやつ googlei18n/libphonenumber: Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers. Install yarn add https://github.com/miiton/jptelformatter Usage import telfmt from 'jptelformatter' telfmt('09000000000') // 090-0000-0000