code: def _jsmin(self):
          
          self.theA = '\n'
          self._action(3)
  
          while self.theA != '\000':
              if self.theA == ' ':
                  if isAlphanum(self.theB):
                      self._action(1)
                  else:
                      self._action(2)
              elif self.theA == '\n':
                  if self.theB in ['{', '[', '(', '+', '-']:
                      self._action(1)
                  elif self.theB == ' ':
                      self._action(3)
                  else:
                      if isAlphanum(self.theB):
                          self._action(1)
                      else:
                          self._action(2)
              else:
                  if self.theB == ' ':
                      if isAlphanum(self.theA):
                          self._action(1)
                      else:
                          self._action(3)
                  elif self.theB == '\n':
                      if self.theA in ['}', ']', ')', '+', '-', '"', '\'']:
                          self._action(1)
                      else:
                          if isAlphanum(self.theA):
                              self._action(1)
                          else:
                              self._action(3)
                  else:
                      self._action(1)
docs: Copy the input to the output, deleting the characters which are
             insignificant to JavaScript. Comments will be removed. Tabs will be
             replaced with spaces. Carriage returns will be replaced with linefeeds.
             Most spaces and linefeeds will be removed.