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Re^3: Hash Curious

by LanX (Sage)
on Oct 16, 2021 at 09:09 UTC ( #11137624=note: print w/replies, xml ) Need Help??

in reply to Re^2: Hash Curious
in thread Hash Curious

I think the table is not fully accurate in the Hash column.

  • "Full contents" of %Hash returns a list of pairs
  • "Multiple elements" of @Hash{SLICE} returns a list of values

NB: there is a new feature %Hash{SLICE} to return "Multiple pairs"

DB<49> @H{a..d}=1..4 DB<50> x %H{d,b} 0 'd' 1 4 2 'b' 3 2 DB<51> x @H{d,b} 0 4 1 2 DB<52>

One could argue that for reasons of symmetry there should be @Hash for a "Full list of values". But this collides with arrays, hence we have the operators values and keys

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

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