The code is very efficient but I would not use it in a professional environment without a comment explaining what it does. Less experienced team members may well look at that and not understand what is doing.
It's not efficient if the developer that comes after you takes twenty minutes to figure out what the heck is going on.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
The code is very efficient but I would not use it in a professional environment without a comment explaining what it does. Less experienced team members may well look at that and not understand what is doing.
It's not efficient if the developer that comes after you takes twenty minutes to figure out what the heck is going on.