a && b: Difference between revisions

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m (Text replacement - "\[\[Category:Scripting Commands OFP 1.[4-9]{2}(\|(\{\{uc:\{\{PAGENAME\}\}\}\}|#))?\]\] " to "")
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{{RV|type=command
{{RV|type=command


| ofp
|game1= ofp
|version1= 1.00


|1.00
|game2= ofpe
|version2= 1.00


|gr1= Math
|game3= arma1
|gr2= Variables
|version3= 1.00


| Returns [[true]] only if both conditions are [[true]]. In case of the alternative syntax, [http://en.wikipedia.org/wiki/Lazy_evaluation#Control_structures lazy evaluation] is used (if left operand is [[false]], evaluation of the right side is skipped completely).
|game4= arma2
|version4= 1.00


{{Feature | Informative | This command is identical to the [[and]] command.}}
|game5= arma2oa
|version5= 1.50


| booleanA [[a && b|&&]] booleanB
|game6= tkoh
|version6= 1.00


|p1= booleanA: [[Boolean]] - test condition or variable
|game7= arma3
|version7= 0.50


|p2= booleanB: [[Boolean]] - test condition or variable
|gr1= Variables


| [[Boolean]]
|gr2= Math
 
|descr= Returns [[true]] only if both conditions are [[true]].
In case of the alternative syntax, [http://en.wikipedia.org/wiki/Lazy_evaluation#Control_structures lazy evaluation] is used - if left operand is [[false]], evaluation of the right side is ignored.
 
|alias= [[a and b]]
 
|s1= booleanA [[a && b|&&]] booleanB
 
|p1= booleanA: [[Boolean]] - Test condition or variable
 
|p2= booleanB: [[Boolean]] - Test condition or variable
 
|r1= [[Boolean]]


|s2=  boolean [[a && b|&&]] code {{Since|arma2oa|1.62|y}}
|s2=  boolean [[a && b|&&]] code {{Since|arma2oa|1.62|y}}


|p21= boolean: [[Boolean]] - test condition or variable
|p21= boolean: [[Boolean]] - Test condition or variable


|p22= code: [[Code]] - code that once executed returns a [[Boolean]]. The code is not evaluated if '''boolean''' is [[false]].
|p22= code: [[Code]] - Code that once executed returns a [[Boolean]]. The code is not evaluated if '''boolean''' is [[false]].


|r2= [[Boolean]]
|r2= [[Boolean]]
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|seealso= [[and]], [[or]], [[Operators]]
|seealso= [[and]], [[or]], [[Operators]]
}}
}}
{{GameCategory|arma1|Scripting Commands|sortKey=#}}
{{GameCategory|arma2|Scripting Commands|sortKey=#}}
{{GameCategory|arma3|Scripting Commands|sortKey=#}}
{{GameCategory|tkoh|Scripting Commands|sortKey=#}}

Revision as of 16:20, 21 May 2021

Logo A0.png1.00ofpe logo.png1.00Logo A1 black.png1.00Logo A2.png1.00A2 OA Logo.png1.50tkoh logo small.png1.00Arma 3 logo black.png0.50
Hover & click on the images for description

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 ignored.
Alias:
a and b
Groups:
VariablesMath

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 Template:Since
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.
Only post proven facts here! Add Note
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