| Shouldn't isempty(nothing) return true? | 22 | 9046 | April 3, 2018 | 
          
            | Best way to make "present?" function in Julia? | 9 | 638 | September 1, 2018 | 
          
            | Nothing type | 2 | 5567 | February 16, 2021 | 
          
            | What is the type of an empty return from match()? | 2 | 651 | November 1, 2017 | 
          
            | Possibility to check `∈` and `∉` in the `===` sense | 5 | 677 | July 24, 2018 |