and: Difference between revisions

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m (Text replacement - "\|seealso= ?\[\[([^ ]+)\]\], \[\[([^ ]+)\]\]" to "|seealso= $1 $2")
m (Text replacement - "\{\{cc\|([^} ]*)\}\}" to "// $1")
Line 54: Line 54:
};</code>
};</code>


|x2= <code>[[if]] (([[count]] _array > 0) [[and]] { (_array [[select]] 0) == [[player]] }) [[then]] {{cc|works as expected}}
|x2= <code>[[if]] (([[count]] _array > 0) [[and]] { (_array [[select]] 0) == [[player]] }) [[then]] // works as expected
{
{
[[hint]] "It works!";
[[hint]] "It works!";
};
};


[[if]] (([[count]] _array > 0) [[and]] (_array [[select]] 0) == [[player]]) [[then]] {{cc|Error: {{ic|_array [[select]] 0}} is evaluated}}
[[if]] (([[count]] _array > 0) [[and]] (_array [[select]] 0) == [[player]]) [[then]] // Error: {{ic|_array [[select]] 0 is evaluated}}
{
{
[[hint]] "It... works?";
[[hint]] "It... works?";

Revision as of 11:26, 12 May 2022

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 && b
Groups:
VariablesMath

Syntax

Syntax:
a and b
Parameters:
a: Boolean - Test condition or variable
b: Boolean - Test condition or variable
Return Value:
Boolean

Alternative Syntax

Syntax:
a and b
Parameters:
a: Boolean - Test condition or variable
b: Code - Code that returns Boolean. It is not evaluated if a is false
Return Value:
Boolean

Examples

Example 1:
if ((not isNull player) and (alive player) and (_enemycount == 0)) then { hint "you win !"; };
Example 2:
if ((count _array > 0) and { (_array select 0) == player }) then // works as expected { hint "It works!"; }; if ((count _array > 0) and (_array select 0) == player) then // Error: _array select 0 is evaluated { hint "It... works?"; };

Additional Information

See also:
a && b 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