code: function convertFullwidthCharsToASCII(text = '') {
    const asciiChars = [...text].map((char, index) => {
      const code = char.charCodeAt(0);
      const lower = isCharInRange(char, LOWERCASE_FULLWIDTH_START, LOWERCASE_FULLWIDTH_END);
      const upper = isCharInRange(char, UPPERCASE_FULLWIDTH_START, UPPERCASE_FULLWIDTH_END);
      if (lower) {
        return String.fromCharCode((code - LOWERCASE_FULLWIDTH_START) + LOWERCASE_START);
      } else if (upper) {
        return String.fromCharCode((code - UPPERCASE_FULLWIDTH_START) + UPPERCASE_START);
      }
      return char;
    });
    return asciiChars.join('');
  }
docs: Converts all fullwidth roman letters in string to proper ASCII
  @param  {String} text Full Width roman letters
  @return {String} ASCII