Is there an elegant way to add something to map on...

# announcements

[Jakub]

Is there an elegant way to add something to map only if it’s not null? code below won’t compile

mapOf(
  LIST_ID to listId,
  eventId?.let { EVENT_ID to eventId }
)

[OG]

My initial thinking is to filter out your null event IDs first then chain it with a map or something so you know you are mapping only non-null values . I'm not sure if there's a way to inline what you're saying into that mapOf operation to skip over nullable values

[Michael de Kaste]

listOfNotNull(
    LIST_ID to listId,
    eventId?.let{ EVENT_ID to eventId }
).toMap()

although it's weird that there is a listOfNotNull function, but not a mapOfNotNull

[OG]

Good find! That's dope