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To express a null string, why would anyone use ...=q{} intead of ...= '' ?

by mikelieman (Pilgrim)
on Mar 03, 2010 at 15:17 UTC ( #826427=categorized question: print w/replies, xml ) Need Help??
Contributed by mikelieman on Mar 03, 2010 at 15:17 UTC
Q&A  > strings


I just came across this while doing some maintenance work.
$debug = q{};
And can't think of a single reason why this would be preferable to the simpler form:
$debug = '';
Am I missing something here, or is it just another example of TMTOWTDI ( but you probably shouldn't... )

Answer: To express a null string, why would anyone use ...=q{} intead of ...= '' ?
contributed by toolic

Damian Conway, in his book Perl Best Practices, considers it a better practice to use q{} (the single-quote operator with matching braces) instead of two single quotes because two single quotes is easily confused with a double quote for some font settings.

Answer: To express a null string, why would anyone use ...=q{} intead of ...= '' ?
contributed by JavaFan

Here's a reason: (hey, you said you couldn't think of a single reason...)

my $quote = q{'}; my $question = q{?}; my $star = q{*}; my $empty = q{};

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