pc.app is null in ESM build about engine HOT 4 OPEN

It doesn't really change between ES5/ESM. In either situation pc.app is null until it isn't, so pc.app.fire('someEvent') works once app is available. It's more a question of whether it should be exported

from engine.

Definitely used a lot by users, as it is the most common way to reference apps outside of scripts.

from engine.

To clarify, it is actually exported but it's null until the app has been initialised. Updated comment to reflect this

from engine.

Here is one example of a use case:

1. Some external script wants to subscribe or fire a global event on app: pc.app.fire('someEvent');.
2. During development in the console it is convenient to do something like: pc.app.root.findByName('Entity') for inspecting entities and so on.

Do these cases still work with ESM?

from engine.