Re: Hash of array.

Hi,

a quick example under the Perl debugger:

  DB<1>  %hash = ( jan => 1, feb => 2, mar => 3);

  DB<2> push @array, $hash{$_} for keys %hash;

  DB<3> x \@array;
0  ARRAY(0x20275150)
   0  1
   1  3
   2  2
[download]

Comment on Re: Hash of array. Download Code

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Re^2: Hash of array. by hippo (Archbishop) on Feb 09, 2017 at 11:25 UTC
`push @array, $hash{$_} for keys %hash;` That will work (as shown) but to me seems very unwieldy when we could use values instead: `push @array, values %hash;` [download] Does using `for` and keys buy you anything here?	[reply] [d/l] [select]
Re^3: Hash of array. by Laurent_R (Canon) on Feb 09, 2017 at 13:45 UTC
You're right, hippo++. I used that construct for pedagogical purpose because I thought at the time that looping over the keys to pick up the values was showing in a better way what's going on, but, thinking again about it, it's true that using values or keys is just the the same idea after all, and that using values makes it possible to use a simpler syntax, be is in a `for` loop as my post above or, even better, in a direct array assignment.	[reply] [d/l]