a = b: Difference between revisions

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{{Command|Comments=
{{Command|Comments=
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| ofp |Game name=
| ofp |Game name=
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|gr1= Variables |GROUP1=
|gr1= Variables |GROUP1=
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| 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.
| 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=
{{Important | You '''cannot''' perform actions such as the following: {{Inline code|a {{=}} b {{=}} c {{=}} 4;}}}} |DESCRIPTION=
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| variable '''{{=}}''' value |SYNTAX=
| variable '''{{=}}''' value |SYNTAX=
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| [[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=
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|x1= <code>_value = 5 </code>  
|x1= <code>_value = 5 </code>  

Revision as of 00:07, 17 January 2021

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.