a = b: Difference between revisions

From Bohemia Interactive Community
Jump to navigation Jump to search
m (Text replacement - "\[\[Category:[ _]?Scripting[ _]Commands[ _]Arma[ _]2(\|.*)]]" to "{{GameCategory|arma2|Scripting Commands}}")
m (Fix sorting key)
Line 9: Line 9:
____________________________________________________________________________________________
____________________________________________________________________________________________


| 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. Additionally, you cannot perform actions such as the following: <nowiki>a = b = c = 4;</nowiki>  |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.
{{Important | You '''cannot''' perform actions such as the following: {{Inline code|a {{=}} b {{=}} c {{=}} 4;}}}} |DESCRIPTION=
____________________________________________________________________________________________
____________________________________________________________________________________________


|'''<nowiki>=</nowiki>''' value |SYNTAX=
| variable '''{{=}}''' value |SYNTAX=


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


|p1= value: [[Anything]] |PARAMETER2=
|p2= value: [[Anything]] |PARAMETER2=


| [[Nothing]] {{Important| '''Note:''' The returned value is not equivalent to [[nil]]. See notes below for additional information.}}|RETURNVALUE=
| [[Nothing]] {{Important| '''Note:''' The returned value is not equivalent to [[nil]]. See notes below for additional information.}}|RETURNVALUE=
____________________________________________________________________________________________
____________________________________________________________________________________________
|x1 =
<code>_value <nowiki>=</nowiki> 5 </code>


<code>_mygroup <nowiki>=</nowiki> [[group]] [[player]]</code>
|x1= <code>_value = 5 </code>  


<code>_greeting <nowiki>=</nowiki> "Hello!"</code>
|x2= <code>_mygroup = [[group]] [[player]]</code>


<code>_enemytank <nowiki>=</nowiki> mytank1 </code> |=
|x3= <code>_greeting = "Hello!"</code>
 
|x4= <code>[[private]] _enemyTank = myTank1</code>


| [[Operators]] |SEEALSO=
| [[Operators]] |SEEALSO=
}}
}}


Line 52: Line 53:
[[Category:Scripting Commands OFP 1.96|#]]
[[Category:Scripting Commands OFP 1.96|#]]
[[Category:Scripting Commands OFP 1.46|#]]
[[Category:Scripting Commands OFP 1.46|#]]
{{GameCategory|arma1|Scripting Commands}}
{{GameCategory|arma1|Scripting Commands|sortKey=#}}
{{GameCategory|arma2|Scripting Commands}}
{{GameCategory|arma2|Scripting Commands|sortKey=#}}
{{GameCategory|arma3|Scripting Commands}}
{{GameCategory|arma3|Scripting Commands|sortKey=#}}


<!-- CONTINUE Notes -->
<!-- CONTINUE Notes -->
Line 64: Line 65:
This can cause problems. For example:<br>
This can cause problems. For example:<br>
<code>_var1 <nowiki>=</nowiki> call {
<code>_var1 <nowiki>=</nowiki> call {
    _var2 <nowiki>=</nowiki> "";
_var2 = "";
};</code>
};</code>
The return value of the "call" is the return value of the "<nowiki>=</nowiki>" operator.<br>
The return value of the "call" is the return value of the "<nowiki>=</nowiki>" operator.<br>

Revision as of 16:38, 11 January 2021

Logo A0.png1.00
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.
⚠
You cannot perform actions such as the following: a = b = c = 4;
Groups:
Variables

Syntax

Syntax:
variable = value
Parameters:
variable: Anything - see Identifier
value: Anything
Return Value:
Nothing
⚠
Note: 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

Notes

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"

Bottom Section

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.
Retrieved from "https://community.bistudio.com/wiki?title=a_%3D_b&oldid=190704"