docs: def je(self):
          r"""Execute operations, returns a string ( '' if the result is None, join='').
  
          This works like :attr:`j` except it returns an empty string if the execution
          result is None.
  
          Examples:
  
              >>> echo(None).je
              ''
          """
          text = self._process()
          return self.make_string(text,join_str='',return_if_none='')