in reply to Re: Hash merging!
in thread Hash merging!

Need to explain myself more...
I understand pointers. It's the semantics of the @$A... line that's baffling me.
I know values %b is returning and array
Also keys %b is returning an array
$A{array} doesn't seem to make sense and what exactly is the @ doing on the front.

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Re^3: Hash merging!
by eibwen (Friar) on Apr 26, 2005 at 08:30 UTC 

    my %hash;             # the % sigil denotes a hash
$hash{'element'} = 1; # the $ sigil denotes a scalar value (the 'eleme
+nt' element of %hash)

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    Similarly, the @ sigil in @$A{keys %b} denotes list context. I believe it interpolates as (verified):

    @$A{(c,d,f)} = (9, 16, 36);

    Which is essentially the same thing as:

    $A{c} = 9;
$A{d} = 16;
$A{f} = 36;

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    Given that $A = \%a, you could skip the reference:

    $a{c} = 9;
$a{d} = 16;
$a{f} = 36;

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Re^3: Hash merging!
by ysth (Canon) on Apr 26, 2005 at 09:09 UTC
    @varname{LIST} is a hash slice, a list of all the values of %varname for the keys in LIST.
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