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<cat>Dev.Lua</cat>⤶ <title>Concepts - NULL Entity</title>⤶ ⤶ # NULL Entity⤶ ⤶ `NULL` is an error value specific to Garry's Mod lua that represents an invalid <page>Entity</page>.⤶ ⤶ Unlike `nil`, which has no data type, `NULL` is an Entity and has the functions of an Entity defined on it. ⤶ If called, functions on NULL will either return error values or throw an error message. ⤶ These functions exist primarily to provide more meaningful error messages to the user and developer in the e⤶ ⤶ See also <page>nil</page>⤶ ⤶ <example>⤶ <description>⤶ In this example, we'll examine some of the behavior of `NULL`⤶ </description>⤶ <code>⤶ print( NULL == NULL ) -- true⤶ print( NULL == nil ) -- false⤶ print( isentity( NULL ) ) -- true⤶ print( NULL.GetPos ) -- function: 0x81991d7a (Or something similar)⤶ print( NULL:GetPos() ) -- [ERROR] XXX:XX: Tried to use a NULL entity! (Or something similar)⤶ </code>⤶ </example>

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