kmongo / kotlin.collections / com.mongodb.client.MongoIterable / single


fun <T> MongoIterable<T>.single(): T (source)

Returns the single element, or throws an exception if the collection is empty or has more than one element.

inline fun <T> MongoIterable<T>.single(crossinline predicate: (T) -> Boolean): T (source)

Returns the single element matching the given predicate, or throws exception if there is no or more than one matching element.