a && b: Difference between revisions

Revision as of 11:26, 12 May 2022

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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 and b
Groups:: Variables Math

Syntax:: boolean && code
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

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!"; };

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@@ Line 57: / Line 57: @@
 };</code>
-|x2= <code>[[if]] (([[count]] _array > 0) && { (_array [[select]] 0) == [[player]] }) [[then]] {{cc|an error would be thrown without lazy evaluation}}
+|x2= <code>[[if]] (([[count]] _array > 0) && { (_array [[select]] 0) == [[player]] }) [[then]] // an error would be thrown without lazy evaluation
 {
 	[[hint]] "It works!";
 };</code>
-|x3= <code>[[if]] (([[alive]] [[player]]) && { [[player]] [[setDamage]] 0.5; [[true]] }) [[then]] {{cc|valid '''as long as''' the code block returns a [[Boolean]]}}
+|x3= <code>[[if]] (([[alive]] [[player]]) && { [[player]] [[setDamage]] 0.5; [[true]] }) [[then]] // valid '''as long as''' the code block returns a [[Boolean]]
 {
 	[[hint]] "It works!";