My current challenge involves displaying the overlay side menu. I have written code to achieve this, adding a menu icon in the header that opens the overlay side menu when clicked, and closes it when clicked outside.
However, I encountered an issue where dragging the page does not activate the overlay side menu. Upon checking my code thoroughly, everything seems to be correct. Yet, an error stating value is undefined
persists. You can view the code in the plunker.
I would appreciate any assistance in identifying why I am encountering the "value is undefined" error.