Re^2: Consise way to filter out keys with undef values from a hash slice?

> with Perl 5.30.0 I get no errors or warnings

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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Re^3: Consise way to filter out keys with undef values from a hash slice? by kcott (Archbishop) on Jun 02, 2020 at 09:52 UTC
Could you elaborate on the reason for providing that link. LanX had already noted the new syntax ("... it was introduced with 5.20 ...") so I saw no reason to comment further in my post. Not that you would have known, but I did check the information from a different source: https://perldoc.perl.org/5.30.0/perldata.html#Key%2fValue-Hash-Slices via https://perldoc.perl.org/5.30.0/functions/delete.html (link in second paragraph). — Ken	[reply]
Re^4: Consise way to filter out keys with undef values from a hash slice? by choroba (Cardinal) on Jun 02, 2020 at 10:00 UTC
Then I've probably misunderstood the part of your post I quoted. `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]
Re^5: Consise way to filter out keys with undef values from a hash slice? by kcott (Archbishop) on Jun 02, 2020 at 10:02 UTC
No worries. :-) — Ken	[reply]