Scalars, Arrays, Hashes, and multi-dimensional arrays and hashes

Hash:

%x = (
"a", "1",
"b", "2",
"c", "3",
"d", ['z', 'x', 'y']
);


$z = $x{d};
@z = @$z;
print "$_, " for @z;

After receiving a 3D array from a function

my @x = myFunction();
my $a = shift @x;
my @a = @$a; # final product


send an array:
myFunction ( \@myArr, \@myList);

Add to a 3D array:
push @x, \@array;

@array3D=();
for $count (0..3){
   for $insideItem (1..10){
      push @{ $array3D[ $count ] }, $insideItem;
   }
}

# print it out:
for my $x (@days3d){
    for my $inner (@$x){
        print "($inner)";
    }
    print "next group\n";
}



---------------
removing lines in hash

%Hash = ( your keys and values here);
@delList = ( list of keys to delete goes here );
delete @Hash{ @delList }; # @ instead of % to delete multiple lines in hash