This event is triggered once when the photo container has been created in the dom.
You should not need to use this event, it's a technical one required by JMap App.
example
// log a message in the console once the photo container is created
JMap.Event.Main.on.containerCreated(
"custom-photo-div-created",
params =>console.log("Photo container created", params.container)
)
JMap.Event.Photo.on
Here you have all available high level events on which you can attach a listener.