count¶

abstract fun count(): Long

Counts how many documents exist in the collection.

CountOperations.countEstimated Faster alternative when the result doesn't need to be exact.

abstract fun count(options: <Document>.() -> Unit = {}, predicate: <Document>.() -> Unit): Long

Counts how many documents match predicate in the collection.

class User(
    val name: String,
    val age: Int,
)

collection.count {
    User::name eq "foo"
    User::age eq 10
}