Difference between revisions of "Nil"

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==See Also==
 
==See Also==
 
*[http://www.lua.org/pil/2.1.html Nil in Programming in Lua]
 
*[http://www.lua.org/pil/2.1.html Nil in Programming in Lua]
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[[Category:Scripting Concepts]]

Revision as of 16:43, 8 May 2008

Nil is a type with a single value, nil, whose main property is to be different from any other value. A global variable has a nil value by default, before a first assignment, and you can assign nil to a global variable to delete it. Lua uses nil as a kind of non-value, to represent the absence of a useful value.

See Also