This is also noted in the manual.
http://manual.qooxdoo.org/current/pages/core/classes.html#instance-members
Take a look at the link for more details and the preferred way to
initialize instance variables.
On 16/12/2015 06:07 μμ, Derrell Lipman wrote:
> Hi Tashos. This is just how JavaScript works. An object (map) is a
> "reference type' in JavaScript. That means that regardless of how many
> variables are assigned that same value, they'll all get a reference to
> the one and only actual object. So when you create your object in the
> /members/ section like this:
>
> ...
> members :
> {
> x : {}
> },
> ...
>
> you are, at that very moment, creating the empty object and stating that
> as each instance of the object is created, the x member should "point
> to" (reference, in JavaScript parlance) that one single object.
>
> Your solution of initializing the member in the constructor is the
> correct one.
>
> Cheers,
>
> Derrell
>
>
> On Wed, Dec 16, 2015 at 10:53 AM tashos <tmitu...@balkantel.net
> <mailto:tmitu...@balkantel.net>> wrote:
>
> Hi,
> We are using qooxdoo for development and I experienced a bug. I have
> declared a member that is pointing to a object and edit that member in
> the constructor of the class. When I create two or more instances of
> said class the member always points to the last created instance. If I
> assign the member to "this" like "this.member = {};" then it works like
> it is expected to. Can you give me a suggestion or a reason as to why
> this is happening?
>
> PS.: The declaration in members goes as follows: members:
> {
> member: {},
> funcUsingMember: function () {
> // Some business logic
>
> return this.member.key;
> }
> }
>
>
>
> ------------------------------------------------------------------------------
> _______________________________________________
> qooxdoo-devel mailing list
> qooxdoo-devel@lists.sourceforge.net
> <mailto:qooxdoo-devel@lists.sourceforge.net>
> https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
>
>
>
> ------------------------------------------------------------------------------
>
>
>
> _______________________________________________
> qooxdoo-devel mailing list
> qooxdoo-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
>
------------------------------------------------------------------------------
_______________________________________________
qooxdoo-devel mailing list
qooxdoo-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
