Getting " ⏎ " this symbol as an output on controller when editor is blank

[vishnureji]

when I was printing the controller's output, I was getting the" ⏎ " symbol when the editor was blank.

print(_summaryNoteController.document.toDelta().toString());

how to remove this.? I need to check whether the controller is blank or not.

[dungngminh]

You can check the document is empty or not, using method isEmpty of Document.
Example:

 if (_quillController.document.isEmpty()) {
      // foo function bla..bla...
   return;
 }