See perldsc for a description of nested data structures like hashes of hashes.
There you'll learn about the meaning of dereferencing operator -> which can be dropped between parens like }{ .
See also perlref
x||0 (ie x or 0) just means return 0 if LHS x is false.
HTH! :)
Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
In reply to Re: query on hash understanding
by LanX
in thread query on hash understanding
by Ritz@Perl
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