a && b: Difference between revisions
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Lou Montana (talk | contribs) m (Text replacement - "\[https?\:\/\/en\.wikipedia\.org\/wiki\/([^ ]+) (.+)\]" to "{{Wikipedia|$1|$2}}") |
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|descr= Returns [[true]] only if both conditions are [[true]]. | |descr= Returns [[true]] only if both conditions are [[true]]. | ||
In case of the alternative syntax, | 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 and b]] | |alias= [[a and b]] |
Revision as of 15:57, 30 May 2021
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 Template:Since
- 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
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
Categories:
- Scripting Commands
- Introduced with Operation Flashpoint version 1.00
- Operation Flashpoint: New Scripting Commands
- Operation Flashpoint: Scripting Commands
- Operation Flashpoint: Elite: Scripting Commands
- ArmA: Armed Assault: Scripting Commands
- Arma 2: Scripting Commands
- Arma 2: Operation Arrowhead: Scripting Commands
- Take On Helicopters: Scripting Commands
- Arma 3: Scripting Commands
- Command Group: Variables
- Command Group: Math