a = b: Difference between revisions

Revision as of 13:14, 19 March 2020

Hover & click on the images for 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. Additionally, you cannot perform actions such as the following: a = b = c = 4;
Groups:: Uncategorised

Syntax:: = value
Parameters:: value: Anything
Return Value:: Nothing
⚠
Note: The returned value is not equivalent to nil. See notes below for additional information.

Example 1:: _value = 5 _mygroup = group player _greeting = "Hello!" _enemytank = mytank1

: 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.

@@ Line 61: / Line 61: @@
 <dt class="note">[[User:Dedmen|Dedmen]]</dt>
 <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:<br>
 <code>_var1 <nowiki>=</nowiki> call {
      _var2 <nowiki>=</nowiki> "";
 };</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>
-If it were a nil then of cause "_var <nowiki>=</nowiki> nil;" would work just fine.<br />
+If it were a nil then of cause "_var <nowiki>=</nowiki> nil;" would work just fine.<br>
-But in reality this causes a "Generic Error in expression" because you can't assign pure Nothing to anything.<br />
+But in reality this causes a "Generic Error in expression" because you can't assign pure Nothing to anything.<br>
 </dd>
 </dl>
 <!-- DISCONTINUE Notes -->