a && b: Difference between revisions

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[[Category:Scripting Commands Take On Helicopters|#]]
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[[Category:Command_Group:_Math|#]]
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Revision as of 10:42, 17 September 2020

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Description

Description:
Returns true only if both conditions are true. In case of the alternative syntax, lazy evaluation is used (if left operand is false, evaluation of the right side is skipped completely).
This command is identical to the and command.
Groups:
MathVariables

Syntax

Syntax:
booleanA && booleanB
Parameters:
booleanA: Boolean - test condition or variable
booleanB: Boolean - test condition or variable
Return Value:
Boolean

Alternative Syntax

Syntax:
boolean && code         (Available since ArmA 2:OA v1.62)
Parameters:
boolean: Boolean - test condition or variable
code: Code - code that once executed returns a Boolean. The code is not evaluated if boolean is false.
Return Value:
Boolean

Examples

Example 1:
private _allEnemiesKilled = true; if (alive player && _allEnemiesKilled) then { hint "you win !"; };
Example 2:
if ((count _array > 0) && { (_array select 0) == player }) then // an error would be thrown without lazy evaluation { hint "It works!"; };
Example 3:
if ((alive player) && { player setDamage 0.5; true }) then // valid as long as the code block returns a Boolean { hint "It works!"; };

Additional Information

See also:
andorOperators

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
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Notes

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