Observing through a Proxy about observer-util HOT 2 CLOSED

Try to replace return target._collection[prop] with return Reflect.get(target._collection, prop, receiver._collection) in the get trap. That should fix it.

I suggest you to read the Proxy, exotic object and ordinary object related parts of the EcmaScript spec to fully understand Proxy traps and JS get/set operations. It's not an easy read but I found no article that really explains these in the required depth.

As a rule of thumb, whenever you return something from a Proxy trap make sure to do it with the Reflect equivalent that forwards all of the arguments (or their custom transformed variants) of the Proxy trap.

from observer-util.

Yes, that works. Thanks for the help and the advice.

from observer-util.