Re: Using MAP to swap around HoA hash keys and array values.

Let's see.

my %new_hash = map { my $v = $hash{$_}; $$v[0], [$_, @$v[1 .. @$v - 1]
+] } keys(%hash);
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Comment on Re: Using MAP to swap around HoA hash keys and array values. Download Code

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Re^2: Using MAP to swap around HoA hash keys and array values. by diotalevi (Canon) on Jun 12, 2006 at 00:49 UTC
`@$v - 1` You meant `$#$v`. `@$v - 1` is taking a wrong value and fixing it make it right. `$#$v` is already right. You should prefer the value that is already right to prevent accidentally getting an off-by-one if you ever forget to include the fixing `-1`. ⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊	[reply] [d/l] [select]