whole_func_string: function toHiragana(s) {
          var res = '';
          for (var i = 0; i < s.length; i += 1) {
              var cd = s.charCodeAt(i);
              res += (minKata <= cd && cd <= maxKata) ?
                  String.fromCharCode(cd - minKata + minHira) : s.charAt(i);
          }
          return res;
      }
func_code_string: function toHiragana(s) {
          var res = '';
          for (var i = 0; i < s.length; i += 1) {
              var cd = s.charCodeAt(i);
              res += (minKata <= cd && cd <= maxKata) ?
                  String.fromCharCode(cd - minKata + minHira) : s.charAt(i);
          }
          return res;
      }
func_documentation_string: 全角カタカナを全角ひらがなに変換します。