Undefined values: Difference between revisions
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show name? "n ; false |
show name? "n ; false |
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show :n ; n has no value</lang> |
show :n ; n has no value</lang> |
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=={{header|Lua}}== |
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<lang lua>print( a ) |
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local b |
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print( b ) |
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if b == nil then |
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b = 5 |
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end |
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print( b )</lang> |
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Output: |
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<pre>nil |
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nil |
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5</pre> |
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=={{header|MUMPS}}== |
=={{header|MUMPS}}== |
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