isNull

1.00

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Description

Description:

Checks whether the tested item is null.
Which null type the item has to be equal to depends on the type of game entity tested:

Type	Object	Group	Control	Display	Location	Task	Script	Config	Diary Record
Null value	objNull	grpNull	controlNull	displayNull	locationNull	taskNull	scriptNull	configNull	diaryRecordNull
Since	OFP v1.00	OFP v1.00	Arma v1.00	Arma v1.00	Arma 2 v1.00	Arma 2 v1.00	Arma 3 v1.29.127075	Arma 3 v1.53.133130	Arma 3 v1.99.146508

⚠

A test via == does not work, because a null value is not equal to anything, not even itself (configNull being the exception). See also isEqualTo.

Problems:

teamMemberNull for Team Member type is not supported. Use private _isNull = _teamMember isEqualTo teamMemberNull instead.

Groups:

Variables

Syntax

Syntax:

isNull entity

Parameters:

entity: Object, Control, Display, Group, Location, Task, Script, Config or Diary Record

Return Value:

Boolean

Examples

Example 1:

if (isNull obj) then {hint "doesn't exist";};

Additional Information

See also:

controlNulldisplayNullgrpNulllocationNullobjNulltaskNullteamMemberNullscriptNullconfigNulltypeName

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note