I have this code
use strict;
use warnings;
my %hash;
$hash{'1'}= {'Make' => 'Toyota','Color' => 'Red',};
$hash{'2'}= {'Make' => 'Ford','Color' => 'Blue',};
$hash{'3'}= {'Make' => 'Honda','Color' => 'Yellow',};
foreach my $key (keys %hash){
my $a = $hash{$key}{'Make'};
my $b = $hash{$key}{'Color'};
print "$a $b\n";
}
And this out put:
Toyota Red Honda Yellow Ford Blue
Need help sorting it by Make.
#!/usr/bin/perl
use strict;
use warnings;
my %hash = (
1 => { Make => 'Toyota', Color => 'Red', },
2 => { Make => 'Ford', Color => 'Blue', },
3 => { Make => 'Honda', Color => 'Yellow', },
);
# if you still need the keys...
foreach my $key ( #
sort { $hash{$a}->{Make} cmp $hash{$b}->{Make} } #
keys %hash
)
{
my $value = $hash{$key};
printf( "%s %s\n", $value->{Make}, $value->{Color} );
}
# if you don't...
foreach my $value ( #
sort { $a->{Make} cmp $b->{Make} } #
values %hash
)
{
printf( "%s %s\n", $value->{Make}, $value->{Color} );
}
print "$_->{Make} $_->{Color}" for
sort {
$b->{Make} cmp $a->{Make}
} values %hash;
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