a && b: Difference between revisions

From Bohemia Interactive Community
Jump to navigation Jump to search
m (Text replacement - "<code>([^ ]*)\[\[([a-zA-Z][a-zA-Z0-9_]+)\]\]([^ ]*) ([^ ]*) ([^ ]*) ([^ ]*)<\/code>" to "<code>$1$2$3 $4 $5 $6</code>")
m (Text replacement - "<code>([^ ]*)\[\[([a-zA-Z][a-zA-Z0-9_]+)\]\]([^ ]*) ([^ ]*) ([^ ]*) ([^ ]*)<\/code>" to "<code>$1$2$3 $4 $5 $6</code>")
Line 62: Line 62:
};</code>
};</code>


|x3= <code>if ((alive player) && { player setDamage 0.5; [[true]] }) [[then]] // 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!";
[[hint]] "It works!";

Revision as of 12:54, 12 May 2022

Logo A0.png1.00ofpe logo.png1.00Logo A1 black.png1.00Logo A2.png1.00A2 OA Logo.png1.50tkoh logo small.png1.00Arma 3 logo black.png0.50
Hover & click on the images for description

Description

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:
VariablesMath

Syntax

Syntax:
booleanA && booleanB
Parameters:
booleanA: Boolean - Test condition or variable
booleanB: Boolean - Test condition or variable
Return Value:
Boolean

Alternative Syntax

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

Examples

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!"; };

Additional Information

See also:
and or Operators

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
Retrieved from "https://community.bistudio.com/wiki?title=a_%26%26_b&oldid=315910"