Re^2: How to grep for values & see the keys?

G'day Rolf,

"°) came into core with 5.20.0 i.e. since May 27, 2014. So only new for oldies like me ;-)"

Just noting that https://perldoc.perl.org/5.20.0/List::Util confirms this; however, https://perldoc.perl.org/5.34.1/List::Util has "Since version 1.29." for both pairgrep and pairmap.

I recalled doing some limited investigation into this last month: "Re: Dancer app works until I run it with Plack::Handler::Apache2" (see the last two dot points under "Other suggestions:"). I now note that https://perldoc.perl.org/5.34.1/List::Util#KNOWN-BUGS lists "RT #95409" while https://perldoc.perl.org/5.20.0/List::Util#KNOWN-BUGS does not.

There are quite a few other functions with "Since version 1.xx." — probably worth checking when List::Util is used; especially if bugs are detected or unexpected behaviours are encountered.

— Ken

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Re^3: How to grep for values & see the keys? by LanX (Saint) on May 15, 2022 at 23:08 UTC
Hi Ken Thanks for pointing to the bug, that's indeed an ugly case ... > however, https://perldoc.perl.org/5.34.1/List::Util has "Since version 1.29." for both pairgrep and pairmap. That's the modules version, 5.20.0 comes bundled with 1.38 (look at upper right corner) > I now note that https://perldoc.perl.org/5.34.1/List::Util#KNOWN-BUGS lists "RT #95409" while https://perldoc.perl.org/5.20.0/List::Util#KNOWN-BUGS does not. 5.34.1 comes bundled with v1.55 of List::Util ... I assume the bug was discovered and included later. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]
Re^4: How to grep for values & see the keys? by kcott (Archbishop) on May 16, 2022 at 03:53 UTC
I was aware that `1.xx` referred to module versions. I wasn't aware that the version number was displayed in Perldoc: good to know; thanks for enlightening me. — Ken	[reply] [d/l]


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