Empty string: Difference between revisions
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Note that we can '''not''' do the following, because the empty string is equivalent to true in Ruby ([[Boolean values#Ruby]]): |
Note that we can '''not''' do the following, because the empty string is equivalent to true in Ruby ([[Boolean values#Ruby]]): |
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<lang ruby>if s then puts "not empty" end</lang> |
<lang ruby>if s then puts "not empty" end</lang> |
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=={{header|Scala}}== |
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<lang scala>// assign empty string to a variable |
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val s="" |
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// check that string is empty |
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s.isEmpty // true |
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s=="" // true |
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s.size==0 // true |
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// check that string is not empty |
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s.nonEmpty // false |
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s!="" // false |
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s.size>0 // false</lang> |
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=={{header|Seed7}}== |
=={{header|Seed7}}== |
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