a && b: Difference between revisions

Revision as of 08:20, 5 November 2015

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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). Identical to: a and b
Multiplayer:: no special considerations
Groups:: Uncategorised

Syntax:: Boolean = a && {b} (Only available since ArmA 2:OA v1.62.)
Parameters:: a: Boolean - Test condition or variable that returns Boolean.
: b: - Expression that returns Boolean. It is not evaluated if a returns as false.
Return Value:: Boolean

Example 1:: if ((alive player) && (_enemycount == 0)) then {hint "you win !"}
Example 2:: if ((count _array > 0) && {(_array select 0) == player}) then {hint "It works! Without lazy evaluation it would throw an error if array was empty."}

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@@ Line 18: / Line 18: @@
-|s2= [[Boolean]] <nowiki>=</nowiki> a '''&&''' b (''Only available since ArmA 2:OA v1.62.'') |= Syntax
+|s2= [[Boolean]] <nowiki>=</nowiki> a '''&&''' {b} (''Only available since ArmA 2:OA v1.62.'') |= Syntax
 |p21= a: [[Boolean]] - Test condition or variable that returns [[Boolean]]. |= Parameter 1
-|p22= b: [[Code]] - Code that returns [[Boolean]]. It is not evaluated if '''a''' returns as [[false]]. |= Parameter 2
+|p22= b:  - Expression that returns [[Boolean]]. It is not evaluated if '''a''' returns as [[false]]. |= Parameter 2
 |r2= [[Boolean]] |= Return value
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