unique number for each object?

[petermichaux]

Hi,

Is there an internally assigned number for each JavaScript object that
I can read? If so how would I do that?

Thanks,
Peter

 

[Richard Cornford]

Is there an internally assigned number for each JavaScript object
that I can read? ...

No. If you want unique identifiers for JS objects you have to create
them yourself (and it is useful to think about how unique they need to
be before you start).

Richard.

 

[Martin Honnen]

Is there an internally assigned number for each JavaScript object that
I can read? If so how would I do that?

There is no hash code which some other languages provide.
IE/Win gives you a generated id on each element node in the DOM, see
<http://msdn.microsoft.com/library/d...uthor/dhtml/reference/properties/uniqueid.asp>

 

[petermichaux]

No. If you want unique identifiers for JS objects you have to create
them yourself (and it is useful to think about how unique they need to
be before you start).

Thanks Richard,

What unexpected considerations need to be made when making a unique id?
I am currently using a prefix and a counter together as a string for
the identifier. The counter increments each time a constructor makes a
new object.

Peter