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Revision as of 23:03, 10 August 2021

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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 ignored.
Alias:: a && b
Groups:: Variables Math

Syntax:: a and b
Parameters:: a: Boolean - Test condition or variable
: b: Code - Code that returns Boolean. It is not evaluated if a is false
Return Value:: Boolean

Example 1:: if ((not isNull player) and (alive player) and (_enemycount == 0)) then { hint "you win !"; };
Example 2:: if ((count _array > 0) and { (_array select 0) == player }) then // works as expected { hint "It works!"; }; if ((count _array > 0) and (_array select 0) == player) then // Error: _array select 0 is evaluated { hint "It... works?"; };

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@@ Line 27: / Line 27: @@
 |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.
+In case of the alternative syntax, {{Wikipedia|Lazy_evaluation#Control_structures|lazy evaluation}} is used - if left operand is [[false]], evaluation of the right side is ignored.
+|alias= [[a && b]]
 |s1= a [[and]] b
@@ Line 37: / Line 39: @@
 |r1= [[Boolean]]
-|s2= a [[and]] b {{Since|arma2oa|1.62|y}}
+|s2= a [[and]] b
+|s2since= arma2oa 1.62
 |p21= a: [[Boolean]] - Test condition or variable
@@ Line 44: / Line 48: @@
 |r2= [[Boolean]]
 |x1= <code>[[if]] (([[not]] [[isNull]] [[player]]) [[and]] ([[alive]] [[player]]) [[and]] (_enemycount == 0)) [[then]]
 {