Your listener id (must be unique)
Your listener function
// 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.containerCreated
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 Server NG.