orEmpty

import samples.*
import kotlin.test.*
fun main() { 
   //sampleStart 
   val nullCollection: Collection<Any>? = null
assertPrints(nullCollection.orEmpty(), "[]")

val collection: Collection<Char>? = listOf('a', 'b', 'c')
assertPrints(collection.orEmpty(), "[a, b, c]") 
   //sampleEnd
}

import samples.*
import kotlin.test.*
fun main() { 
   //sampleStart 
   val nullList: List<Any>? = null
assertPrints(nullList.orEmpty(), "[]")

val list: List<Char>? = listOf('a', 'b', 'c')
assertPrints(list.orEmpty(), "[a, b, c]") 
   //sampleEnd
}

import samples.*
import kotlin.test.*
import java.util.*
fun main() { 
   //sampleStart 
   val nullMap: Map<String, Any>? = null
assertPrints(nullMap.orEmpty(), "{}")

val map: Map<Char, Int>? = mapOf('a' to 1, 'b' to 2, 'c' to 3)
assertPrints(map.orEmpty(), "{a=1, b=2, c=3}") 
   //sampleEnd
}

import samples.*
import kotlin.test.*
fun main() { 
   //sampleStart 
   val nullArray: Array<Any>? = null
assertPrints(nullArray.orEmpty().contentToString(), "[]")

val array: Array<Char>? = arrayOf('a', 'b', 'c')
assertPrints(array.orEmpty().contentToString(), "[a, b, c]") 
   //sampleEnd
}