Null object: Difference between revisions
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(→{{header|Lasso}}: adding null type comparison tests) |
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additional properties : _n@i and _n?i are i; _n`v is _n |
additional properties : _n@i and _n?i are i; _n`v is _n |
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</lang> |
</lang> |
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=={{header|Lasso}}== |
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<lang Lasso>local(x = string, y = null) |
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#x->isA(::null) |
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// 0 (false) |
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#y->isA(::null) |
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// 1 (true) |
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#x == null |
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// false |
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#y == null |
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//true |
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#x->type == 'null' |
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// false |
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#y->type == 'null' |
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//true</lang> |
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=={{header|Logo}}== |
=={{header|Logo}}== |
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