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Re: chaining method calls

by mirod (Canon)
on Jun 11, 2003 at 23:16 UTC ( #265217=note: print w/replies, xml ) Need Help??

in reply to chaining method calls

I actually love chaining methods (I changed a whole lot of methods in XML::Twig so they would return something that can be chained).

What's not to love about being able to write:

... # handler for warning warning => sub { $_->change_tag( 'p') ->set_att( style => "color:red") ->set_prefix( "WARNING: "); }, ...

(apart from the fact that you could do all of this with CSS of course ;--) ?

I agree that sometimes it can get a little confusing though, when the returned object/value is not obvious: should $elt->delete_atts return the element, so you can chain method calls on it, or should it return the attribute hash so you can store it?

Overall I think it makes for elegant code. You'll get use to it ;--)

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