Check that file exists: Difference between revisions
Content added Content deleted
(→{{header|Perl}}: add Perl 6 entry) |
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<lang logo>setprefix "/ |
<lang logo>setprefix "/ |
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show file? "input.txt</lang> |
show file? "input.txt</lang> |
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=={{header|Lua}}== |
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<lang lua>function output( s, b ) |
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if b then |
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print ( s, " does not exist." ) |
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else |
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print ( s, " does exist." ) |
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end |
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end |
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output( "input.txt", io.open( "input.txt", "r" ) == nil ) |
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output( "/input.txt", io.open( "/input.txt", "r" ) == nil ) |
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output( "docs", io.open( "docs", "r" ) == nil ) |
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output( "/docs", io.open( "/docs", "r" ) == nil )</lang> |
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=={{header|Mathematica}}== |
=={{header|Mathematica}}== |
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