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I also find methods that return the object extremely annoying. Of course it is okay to chain method calls, but imNSho, only if the object returned if different from the one used to call the method. That makes sense and is useful, even though that too is not ideal when debugging. I don't mind doing

my $page = LWP::UserAgent->new->request(...)->content;
or
my ($name) = DBIx::Simple ->connect('dbi:SQLite:people') ->query('SELECT name FROM people WHERE email=? LIMIT 1', $email) ->list;
, but I do dislike when a method returns its $_[0].

The argument that I hear the most is that chaining methods like this reduces typing. While that is true, I think it's a very bad reason for actually doing so. Using only globals and no strict is another way to save three characters per first use. Not checking open's return value is another way of typing less. It seems that length reduction and bad style often go together.

Juerd # { site => 'juerd.nl', plp_site => 'plp.juerd.nl', do_not_use => 'spamtrap' }


In reply to Re: chaining method calls by Juerd
in thread chaining method calls by perrin

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