http://www.perlmonks.org?node_id=1010293


in reply to Re: Concerning hash operations (appending, concatenating)
in thread Concerning hash operations (appending, concatenating)

<This is one idiom,

<%hash = (%hash, e => 'f', g => 'h', i => 'j'); <%hash = (%otherhash, %hash);

This code reminds me of writing the comma operator in this way: ",=", so to concatenate a hash:

my %hash1 =qw/ One 1 Two 2 Three 3/; my %hash2 =qw/ Four 4 Five 5 Six 6/; %hash1 ,= %hash2; say keys %hash1;

And I've checked it, it works in Perl6, the future version of Perl.