Listen Observable in a loop

Bugs
1

Hi,

I’m not sure if it’s a bug or myself doing a bad usage of observables, but I have an issue by listening observable in a loop.

In a loop, only the last added callback is called when doing a .notifyObservers()
Here’s a Playground example with the mesh.onDisposeObservable observable.

Thank you !

2

It is JavaScript thing: use “const” instead of “var”: https://playground.babylonjs.com/#XUC7O1#2

See also.

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4

This is probably the solution: https://playground.babylonjs.com/#XUC7O1#5

I would expect that sphere.dispose does cleanup the observables for you. And maybe your extra call to observer.dispose messes up the cleanup loop?

This: https://playground.babylonjs.com/#XUC7O1#7 (as per latest comment)

5

The changes are that Observable.remove() has now a defer prop that is set to false by default, so giving it true fix the problem

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