getVariable

1.001.001.501.000.50

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Description

Description:

Returns the value of variable in the variable space assigned to various data types. All available data types combinations:

Primary syntax (String)		Alternative syntax (Array)
Code	Since	Code	Since
Namespace getVariable String	-	Namespace getVariable Array	Arma 2: Operation Arrowhead v1.60
Object getVariable String	-	Object getVariable Array	-
Group getVariable String	-	Group getVariable Array	-
Team Member getVariable String	-	Team Member getVariable Array	-
Task getVariable String	-	Task getVariable Array	Arma 3 v1.68
Location getVariable String	-	Location getVariable Array	Arma 3 v1.68
Control getVariable String	-	Control getVariable Array	Arma 3 v1.56
Display getVariable String	Arma 3 v1.56	Display getVariable Array	Arma 3 v1.56

⚠

When variable is set on a Task, it is not actually set on the task itself, but on the FSM attached to the task.
If there is no FSM, getVariable will not work.

In the case of Alt Syntax usage in Arma 3, defaultValue will be returned if:

• Requested variable is either undefined or nil
• Variable namespace is null (objNull, grpNull, etc.)

Groups:

VariablesNamespacesMultiplayer

Syntax

Syntax:

varspace getVariable name

Parameters:

varspace: Namespace, Object, Display, Control, Group, Location, Task, Team Member, Display, Control

name: String - Variable name in given namespace

Return Value:

Anything or Nothing if the variable doesn't exist

Alternative Syntax

Syntax:

varspace getVariable [name, defaultValue]

Parameters:

varspace: Namespace, Object, Display, Control, Group, Location, Task, Team Member, Display, Control

name: String - Variable name in given namespace

defaultValue: Anything - Value to return if variable doesn't exist

⚠

A dynamic defaultValue e.g. random 500 will always be executed, even if the variable is defined.

Return Value:

Anything - Current value of the variable or defaultValue if the variable doesn't exist.

Examples

Example 1:

private _variable = myTruck getVariable "myVariable"; // returns nil if "myVariable" is not set

Example 2:

private _variable = myTruck getVariable ["myVariable", 50]; // returns 50 if "myVariable" is not set

Example 3:

for "_i" from 0 to 5 do { _car = missionNamespace getVariable ("car" + str _i); _car setDamage 0; }; // Set damage of car0..car5 to 0

Example 4:

myMissionVar = 2015; missionNamespace getVariable "myMissionVar"; // Returns 2015

Example 5:

Get current value of a variable and if it is undefined, define it and get the defined value:

private _var = missionNamespace getVariable "varName"; if (isNil "_var") then { missionNamespace setVariable ["varName", 123]; _var = 123; }; // _var here will contain current value of the variable varName

Additional Information

See also:

setVariable allVariables getFSMVariable

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

Posted on August 13, 2016 - 17:13 (UTC)

Ebay

NOTE: Arma 2 only! In Arma 3 this will return default value: Warning: the alternative syntax returns undefined when the namespace is an object and that object is null. Example:

_test = objNull getVariable ["test", "0"]; systemChat _test;

Errors because _test is undefined. Tested in Arma 2: Operation Arrowhead 1.63.131129

Posted on August 31, 2017 - 03:29 (UTC)

AgentRev

You can do typechecking using param:

private _myVar = [player getVariable "myVar"] param [0, "", [""]];

and params:

[player getVariable "myVar"] params [["_myVar", "", [""]]];