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Undefined values: Difference between revisions
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Line 245:
show name? "n ; false
show :n ; n has no value</lang>
=={{header|Lua}}==
<lang lua>print( a )
local b
print( b )
if b == nil then
b = 5
end
print( b )</lang>
Output:
<pre>nil
nil
5</pre>
=={{header|MUMPS}}==
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