Kotlin how to return a SINGLE object from a list that contains a specific id?

Question

Good day, i\'m stuck figuring out how to get a single object from a list, i did google but all the topics show how to return a List with sorted objects or somet

Answer 1

If you don't want to deal with null objects, try this:

val index = myList.indexOfFirst { it.userId == id } // -1 if not found
if (index >= 0) {  
    val user = myList[index]
    // do something with user
}