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Boolean values: Difference between revisions

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Boolean values (view source)

Revision as of 13:38, 23 March 2023

334 bytes removed ,  1 year ago
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→‎Perl: removed example of deprecated code
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m (→‎Perl: removed example of deprecated code)
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=== There are no keywords for true and false ===
 
Perl has no builtin "true" or "false" keywords. ThisAn isold atrick caveat,of becauseusing truethem and false areas bareword strings andis strongly discouraged evaluatein tomodern true:Perl.
 
<syntaxhighlight lang="perl"># This does not work
# true and false are not special so will be treated as bareword strings
if (true) { print "true is true\n" }; # This prints
if (false) { print "false is true\n" }; # So does this
if (spongebob) { print "spongebob is true\n" }; # A bareword string</syntaxhighlight>
 
=== Special cases ===
SqrtNegInf
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