Hi
currently the rdBuff is shared between all instatces
try to create the instance variable (here rdBuff) inside the initialize
function
and with the this keyword its not default like in C++ etc...
var SomeClass = Class.create({
initialize: function(name) {
this.rbBuffer = {};
},
setBuffer: function(val) {
this.rbBuffer.test = val;
},
.
.
.
hope it helped
cheers
yuval
On Sat, Dec 4, 2010 at 5:01 PM, Luke <kickingje...@gmail.com> wrote:
> Hi,
>
> I've got a weird behavior here, or rather a behavior I don't
> understand. If you take the following Class:
>
> ---
> var SomeClass = Class.create({
>
> rbBuffer: nulll,
>
> setBuffer: function(val) {
> this.rbBuffer = val;
> },
>
> getBuffer: function() {
> return this.rbBuffer;
> }
> });
> ---
>
> and play around a little bit:
>
> ---
> var c1 = new SomeClass();
> var c2 = new SomeClass();
>
> c1.setBuffer(true);
> c2.setBuffer(false);
>
> log(c1.getBuffer()); // PRINTS TRUE
> log(c2.getBuffer()); // PRINTS FALSE
> ---
>
> everything works as expected. But if you alter that class and make
> rbBuffer a JSON-object and try to set/get properties of that object,
> it kinda gets shared:
>
> ---
> var SomeClass = Class.create({
>
> rbBuffer: {},
>
> setBuffer: function(val) {
> this.rbBuffer.test = val;
> },
>
> getBuffer: function() {
> return this.rbBuffer.test;
> }
> });
>
> var c1 = new SomeClass();
> var c2 = new SomeClass();
>
> c1.setBuffer(true);
> c2.setBuffer(false);
>
> log(c1.getBuffer()); // PRINTS FALSE
> log(c2.getBuffer()); // PRINTS FALSE
> ---
>
> rbBuffer.test of the first object is overwritten with the value you
> set on the second object, as if the use the same variable.
>
> Does anyone know why this is, and how to work with it?
>
> Thanks
> Lukas
>
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