Empty string: Difference between revisions
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(added racket, actually copied scheme since it already works) |
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#or |
#or |
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if (nchar(s) > 0) cat('Not empty\n')</lang> |
if (nchar(s) > 0) cat('Not empty\n')</lang> |
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=={{header|Racket}}== |
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<lang Racket>#lang racket |
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(define empty-string "") |
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(define (string-null? s) (string=? "" s)) |
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(define (string-not-null? s) (string<? "" s))</lang> |
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=={{header|Rascal}}== |
=={{header|Rascal}}== |
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