flash - null an object kill reference or the space in memory -

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this might dumb question. think know answer, clarify. if declare object in varible1 , pass value varible2. if decide null varible2 kill reference or object well. want no, again, reference self, affects space in memory.

these 2 varibles in class. 

private var objects:array; private var viewableobjects:array;

above class varibles. later on in code add object objects array

objects[0][4] = new enemy1();

when trace following

[object enemy1]

i add viewable objects array

viewableobjects.push(objects[0]);

next remove it. later on down lines. looping through code see "i" in first element.

viewableobjects[i][4] = null;

and when trace same first varible "objects[0][4]"... shows 

null

setting reference null not affect object, unless it's last reference object (in case makes eligible garbage collection)

you might want read more on how references work.


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