Re^3: Subarray in a hash: Can't use string ("STRING") as a HASH ref while "strict refs" in use

( ) are used for assignments to arrays and hashes. [ ] are used for array references, { } are used for hash references. You are not assigning a hash, you are assigning a hash reference here.

Updated.

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Re^4: Subarray in a hash: Can't use string ("STRING") as a HASH ref while "strict refs" in use by shawnhcorey (Friar) on Apr 08, 2014 at 14:22 UTC
No, ( ) is used for lists. Lists are converted into arrays by assignment. Also, lists are converted into hashes by assignment. Example: note the addition of the ``undef`` to make the hash work properly. `#!/usr/bin/env perl use strict; use warnings; use feature qw( :all ); # -------------------------------------- # Modules use Data::Dumper; # Make Data::Dumper pretty $Data::Dumper::Sortkeys = 1; $Data::Dumper::Indent = 1; # Set maximum depth for Data::Dumper, zero means unlimited local $Data::Dumper::Maxdepth = 0; # -------------------------------------- my @a = my %h = ( 1, 2, 3 ); say Dumper \@a; say Dumper \%h;` [download]	[reply] [d/l]

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Re^4: Subarray in a hash: Can't use string ("STRING") as a HASH ref while "strict refs" in use
by shawnhcorey (Friar) on Apr 08, 2014 at 14:22 UTC

No, ( ) is used for lists. Lists are converted into arrays by assignment. Also, lists are converted into hashes by assignment.

Example: note the addition of the `undef` to make the hash work properly.

#!/usr/bin/env perl

use strict;
use warnings;
use feature   qw( :all );

# --------------------------------------
# Modules

use Data::Dumper;

# Make Data::Dumper pretty
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Indent   = 1;

# Set maximum depth for Data::Dumper, zero means unlimited
local $Data::Dumper::Maxdepth = 0;

# --------------------------------------

my @a = my %h = ( 1, 2, 3 );

say Dumper \@a;
say Dumper \%h;
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