Why doesn't Perl support interpolation of hashes in double quotes?

Question

#!/usr/bin/perl
use warnings;

my %hash=(\"no1\"=>1, 
        \"no2\"=>2,
      );

print %hash; #Prints no11no22
print \"%hash\"; #Prints %hash

Answer 1

Not really an answer to the "why", but I thought I would point out various answers to the "how".

One could, of course, try:

#!/usr/bin/perl
use warnings; use strict;

my %hash = (
    "no1" => 1,
    "no2" => 2,
);

print "@{[ %hash ]}\n";

But, I don't know what use that would be.

If you want to dump the contents of a hash or any other complicated data structure, use Data::Dumper or YAML or JSON depending on your use case.