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Re^2: Perl Idioms Explained - !!expr

by davidrw (Prior)
on Nov 05, 2005 at 02:55 UTC ( #505935=note: print w/replies, xml ) Need Help??


in reply to Re: Perl Idioms Explained - !!expr
in thread Perl Idioms Explained - !!expr

I would also mention just a simple ternary operator as an alternative:
return grep($_ eq $_[0], @_[ 1 .. $#_ ]) ? 1 : '';
or, more generally the equivalent to !!$expr is (some of the parens are optional depending on context):
(($expr)?1:'')

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[LanX]: DBI: is there an easy method to get the content of a column as an array
[LanX]: values %{ $DBI->fetchrow_has href('column_name' }
[LanX]: ehm ... fetchall_hashref
[Jenda]: my int @a = ^5_000_000 Coerces the argument to Numeric, and generates a range from 0 up to (but excluding) the argument.
[Jenda]: The apparent design principle of Perl6 operators was "Let's confuse 'em dudes." Whose braindead idea was this particular operator and the three hundred around it?

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