a && b: Difference between revisions
Jump to navigation
Jump to search
Lou Montana (talk | contribs) m (Text replacement - "<code>([^<]*)\[\[([a-zA-Z][a-zA-Z0-9_]+)\]\]([^<]*) *<\/code>" to "<code>$1$2$3</code>") |
Lou Montana (talk | contribs) m (Text replacement - "<sqf>([^↵][^<]*↵[^<]*)<\/sqf>" to "<sqf> $1 </sqf>") |
||
| (13 intermediate revisions by the same user not shown) | |||
| Line 29: | Line 29: | ||
|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, {{Link|https://en.wikipedia.org/wiki/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]] | ||
| Line 35: | Line 35: | ||
|s1= booleanA [[a && b|&&]] booleanB | |s1= booleanA [[a && b|&&]] booleanB | ||
|p1= booleanA: [[Boolean]] - | |p1= booleanA: [[Boolean]] - test condition or variable | ||
|p2= booleanB: [[Boolean]] - | |p2= booleanB: [[Boolean]] - test condition or variable | ||
|r1= [[Boolean]] | |r1= [[Boolean]] | ||
| Line 45: | Line 45: | ||
|s2since= arma2oa 1.62 | |s2since= arma2oa 1.62 | ||
|p21= boolean: [[Boolean]] - | |p21= boolean: [[Boolean]] - test condition or variable | ||
|p22= code: [[Code]] - | |p22= code: [[Code]] - code that once executed returns a [[Boolean]]. The code is not evaluated if '''boolean''' is [[false]]. | ||
|r2= [[Boolean]] | |r2= [[Boolean]] | ||
|x1= < | |x1= <sqf> | ||
if ( | private _allEnemiesKilled = true; | ||
if (alive player && _allEnemiesKilled) then | |||
{ | { | ||
hint "you win !"; | |||
};</ | }; | ||
</sqf> | |||
|x2= < | |x2= <sqf> | ||
if ((count _array > 0) && { (_array select 0) == player }) then // an error would be thrown without lazy evaluation | |||
{ | { | ||
hint "It works!"; | hint "It works!"; | ||
};</ | }; | ||
</sqf> | |||
|x3= < | |x3= <sqf> | ||
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!"; | ||
};</ | }; | ||
</sqf> | |||
|seealso= [[and]] [[or]] [[Operators]] | |seealso= [[and]] [[or]] [[Operators]] | ||
}} | }} | ||
Latest revision as of 19:42, 3 September 2024
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:
- Example 2:
- Example 3:
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