or: Difference between revisions

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Revision as of 13:46, 1 September 2019

Hover & click on the images for description

Description

Description:
Returns true only if one or both conditions are true. In case of the alternative syntax, lazy evaluation is used (if left operand is true, evaluation of the right side is skipped completely). Identical to: a || b
Multiplayer:
no special considerations
Groups:
Uncategorised

Syntax

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

Alternative Syntax

Syntax:
Boolean = a or 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 true.
Return Value:
Boolean

Examples

Example 1:
if ((OBJ1) or (_enemycount == 0)) then {hint "you win !"}
Example 2:
if ((count _array == 0) or {(_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 bandOperators

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

Notes

Bottom Section

Posted on March 29, 2015 - 13:07 (UTC)
IT07
The examples suggest that you can only use two conditions with or. You can use more if you want. It is not recommended to use a lot of conditions because the check will take longer to complete.