http://www.perlmonks.org?node_id=569043


in reply to Re^2: What I Most Recently Learned in Perl, But Should Have Already Known
in thread What I Most Recently Learned in Perl, But Should Have Already Known

'???' actually is no real thing. It's more like Deparse saying, this should be optimized away.

E. g. every "Useless use of a constant in void context" also results in this.