a = b: Difference between revisions

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m (Text replacement - "</dd> </dl>" to "</dd> </dl>")
m (Some wiki formatting)
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{{RV|type=command
{{RV|type=command


| ofp
|game1= ofp
|1.00
|version1= 1.00


|game2= ofpe
|game2= ofpe
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|gr1= Variables
|gr1= Variables


| Assigns the result of expression on the right to the variable on the left. Technically this is not a command and it is not listed in [[supportInfo]]; this is more of a compiler instruction.
|descr= Assigns the result of expression on the right to the variable on the left. Technically this is not a command and it is not listed in [[supportInfo]]; this is more of a compiler instruction.
{{Feature | important | You '''cannot''' perform actions such as the following: {{ic|a {{=}} b {{=}} c {{=}} 4;}}}}
{{Feature | important |The following structure is invalid: {{ic|a {{=}} b {{=}} c {{=}} 4;}}}}


| variable '''{{=}}''' value
|s1= variable [[a = b|=]] value


|p1= variable: [[Anything]] - see [[Identifier]]
|p1= variable: [[Anything]] - see [[Identifier]]
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|p2= value: [[Anything]]
|p2= value: [[Anything]]


|r1=[[Nothing]] {{Feature|important| '''Note:''' The returned value is not equivalent to [[nil]]. See notes below for additional information.}}
|r1=[[Nothing]] {{Feature|important|The returned value is not equivalent to [[nil]]. See {{HashLink|#Notes}} below for additional information.}}


|x1= <code>_value = 5</code>  
|x1= <code>_value [[a = b|=]] 5</code>  


|x2= <code>_mygroup = [[group]] [[player]]</code>
|x2= <code>_mygroup [[a = b|=]] [[group]] [[player]]</code>


|x3= <code>_greeting = "Hello!"</code>
|x3= <code>_greeting [[a = b|=]] "Hello!"</code>


|x4= <code>[[private]] _enemyTank = myTank1</code>
|x4= <code>[[private]] _enemyTank [[a = b|=]] myTank1</code>


|seealso= [[Operators]]
|seealso= [[Operators]]
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<dd class="note">It's possible to assign to [[Number|numbers]]. Numbers values are not changed. Useful instead of assigning to ''nul'' or ''nil'' when a result is of no use.
<dd class="note">It's possible to assign to [[Number|numbers]]. Numbers values are not changed. Useful instead of assigning to ''nul'' or ''nil'' when a result is of no use.
<code>0 <nowiki>=</nowiki> [player] execVM "myScript.sqf"</code>
<code>0 <nowiki>=</nowiki> [player] execVM "myScript.sqf"</code>
</dl>
</dd>
 
{{GameCategory|arma1|Scripting Commands|sortKey=#}}
{{GameCategory|arma2|Scripting Commands|sortKey=#}}
{{GameCategory|arma3|Scripting Commands|sortKey=#}}
 
<dl class="command_description">


<dt></dt>
<dt></dt>
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<dt class="note">[[User:Dedmen|Dedmen]]</dt>
<dt class="note">[[User:Dedmen|Dedmen]]</dt>
<dd class="note">
<dd class="note">
This operator actually does not return a Nil. It really returns pure Nothing. Not Nil Nothing. <br>
This operator actually does not return a Nil. It really returns pure Nothing. Not Nil Nothing.<br>
This can cause problems. For example:<br>
This can cause problems. For example:
<code>_var1 <nowiki>=</nowiki> call {
<code>_var1 = call {
_var2 = "";
_var2 = "";
};</code>
};</code>

Revision as of 16:56, 13 June 2021

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:
Assigns the result of expression on the right to the variable on the left. Technically this is not a command and it is not listed in supportInfo; this is more of a compiler instruction.
⚠
The following structure is invalid: a = b = c = 4;
Groups:
Variables

Syntax

Syntax:
variable = value
Parameters:
variable: Anything - see Identifier
value: Anything
Return Value:
Nothing
⚠
The returned value is not equivalent to nil. See Notes below for additional information.

Examples

Example 1:
_value = 5
Example 2:
_mygroup = group player
Example 3:
_greeting = "Hello!"
Example 4:
private _enemyTank = myTank1

Additional Information

See also:
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
Posted on December 15, 2006 - 05:27
Kronzky
A conditional assignment can be done via the following syntax: _msg = if (alive player) then {"you're alive"} else {"you're dead"}
Posted on June 22, 2009 - 16:27
Alef
It's possible to assign to numbers. Numbers values are not changed. Useful instead of assigning to nul or nil when a result is of no use. 0 = [player] execVM "myScript.sqf"
Posted on November 9, 2016 - 00:29 (UTC)
Dedmen
This operator actually does not return a Nil. It really returns pure Nothing. Not Nil Nothing.
This can cause problems. For example: _var1 = call { _var2 = ""; }; The return value of the "call" is the return value of the "=" operator.
If it were a nil then of cause "_var = nil;" would work just fine.
But in reality this causes a "Generic Error in expression" because you can't assign pure Nothing to anything.
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