kotlin-stdlib/kotlin.collections/emptySet

emptySet

Returns an empty read-only set. The returned set is serializable (JVM).

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
               val set = setOf<String>()
            println("set.isEmpty() is ${set.isEmpty()}") // true

            // another way to create an empty set,
            // type parameter is inferred from the expected type
            val other: Set<Int> = emptySet()

            // "Empty sets are equal"
println("set == other is ${set == other}") // true
            println(set) // [] 
   //sampleEnd
}
xxxxxxxxxx
 
val set = setOf<String>()
println("set.isEmpty() is ${set.isEmpty()}") // true
// another way to create an empty set,
// type parameter is inferred from the expected type
val other: Set<Int> = emptySet()
// "Empty sets are equal"
println("set == other is ${set == other}") // true
println(set) // [] 
Open in Playground →
Target: JVMRunning on v.2.1.20

Thanks for your feedback!

Was this page helpful?