On Jul 17, 9:09 am, mtjs <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have something like this :
>
> var myTestClass=Class.create({
> initialize:function(opt) {
> this.child=null;
>
> // do stuff that uses mem
> // like create and show divs
> // and so on
>
> },
> myFnc:function(param) {
>
> }
> });
>
> With this class I build a 'tree'.
> (
> in real life I use other code to do this : the child is assigned
> from within the class, but that doesn't matter for my question
> )
>
> var myOne=new myTestClass();
> myOne.child=new myTestClass();
> myOne.child.child=new myTestClass();
> myOne.child.child.child=new myTestClass();
>
> I don't know how much childs there are, yet I want to free all the
> memory.
>
> Main question :
>
> how can I do that ?
>
> can I do it by : myOne=null;
>
> should I free every instance ?
> I tried it with a loop, first adding all childs to an array (if I
> set the 'parent'
> to 'null', I can't see what's in it anymore)
>
> var emptyList=new Array();
> var tmp=myOne;
> while (tmp) {
> emptyList.push(tmp);
> tmp=tmp.child;
> }
> for (var i=0; i<emptyList.length; i++) {
> emptyList[i]=null;
> }
> This doesn't work: the 'reference' to the instance in 'emptyList[n]'
> is a copy, not a
> 'reference' so I just use more memory and then empty it again, yet I
> don't free the
> tree I've made in 'myOne'. (so far as I tested)
>
> can I destroy it from within 'myOne' (with a destory function or
> something like that)
> (I tried this=null in the class but that doesn't work ;))
All objects are actually "passed by reference" (including function
ones). Only primitives are copied. How exactly did you determine that
manual "nulling" doesn't work and only consumes more memory?
-- kangax
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Prototype: Core" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/prototype-core?hl=en
-~----------~----~----~----~------~----~------~--~---
