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Re^2: Ternary operators: a hinderance, not a help

by Zaxo (Archbishop)
on Aug 09, 2005 at 19:35 UTC ( [id://482390]=note: print w/replies, xml ) Need Help??


in reply to Re: Ternary operators: a hinderance, not a help
in thread Ternary operators: a hinderance, not a help

I expect that the corresponding nested if..else construct would be even more baffling. The weakness here is in the negated and chopped-up logic, not the trinary op. I'll make a first cut at rewriting it:

my $send_now_button = $auth{'SEND'} && $status==1 && $approved && !$send_now ? qq( ...blah blah ...) : '';
Not nested, you can use it now ;-)

I think I had an easier time decyphering the (well-formatted!) nested trinary than I would have a similarly built if statement.

Update: Just for fun, here's thing I'm slanging, formatted the best I know how,

my $send_now_button; if ( !$auth{'SEND'} ) { $send_now_button = ''; } else { if ( $status != 1 ) { $send_now_button = ''; } else { if ( $approved ) { if ( $send_now ) { $send_now_button = ''; } else { $send_now_button = qq( ...blah blah ...); } } else { if ( $send_now ) { $send_now_button = ''; } else { $send_now_button = ''; } } } }
Noisy, ain't it? That maybe does even better than the trinary version at pointing out how ludicrous the logic is, but IMO trinary makes it easier to see how to fix it. I didn't even bring elsif to the table :-))

After Compline,
Zaxo

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