622
        
            
                know the features of your language
 
            
            (lemmy.world)
          
          
          
          
          
        Post funny things about programming here! (Or just rant about your favourite programming language.)
So this won't do the intended thing if a is 0.
Edit: Sorry I meant to reply to the parent comment, realising now you already write the exact same thing.
Also if a is an empty collection or str, or false.