Re: How can I populate attributes of a hash into another ?

[2teez]

ravi06,
I thought, a chapter should be a subset of a book and not the other way round? However, if you are sure of what you wanted, knowing that the key of hash MUST be unique, then you can do like so:

use warnings;
use strict;
use Data::Dumper;

my %book = (
'name' => 'abc',
'author' => 'monk',
'isbn' => '123-890',
'issn' => '@issn',           
);

my %chapter = (
'title' => 'xyz',
'page' => '90',                
);

## VOIR HERE
my @temp_arr = keys %book;
@chapter{@temp_arr} = @book{@temp_arr};

print Dumper \%chapter;

print $/, $chapter{name},$/;  #prints abc

NOTE: And what about '@issn' in your script? Like you have it, if it is an array variable, it won't interpolate!! Just saying...

[hdb]

Calls to keys and values are guaranteed to return data in a consistent way, so you could simply write:

@chapter{ keys %book } = values %book;