and: Difference between revisions

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| 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).
| 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).


| [[Boolean]] <nowiki>=</nowiki> a '''and''' b
| a '''and''' b
|p1= a: [[Boolean]] - Test condition or variable that returns [[Boolean]].
|p1= a: [[Boolean]] - Test condition or variable that returns [[Boolean]].
|p2= b: [[Boolean]] - Test condition or variable that returns [[Boolean]].
|p2= b: [[Boolean]] - Test condition or variable that returns [[Boolean]].

Revision as of 17:33, 8 May 2021

Hover & click on the images for description

Description

Description:
Description needed
Multiplayer:
no special considerations
Groups:
VariablesMath

Syntax

Syntax:
Syntax needed
Parameters:
a: Boolean - Test condition or variable that returns Boolean.
b: Boolean - Test condition or variable that returns Boolean.
Return Value:
Return value needed

Alternative Syntax

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

Examples

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

Additional Information

See also:
a && borOperators

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
Posted on April 12, 2015 - 10:45 (UTC)
IT07
Just like the "or" command, the "and" command allows several conditions to be checked. Example:
if(alive player and speed player > 0 and _someOtherVar) then { hint"All three condtions are true" }; The example above will check if the player is alive and if the player is moving and checks if _someOtherVar is true.