Advanced Collection Function (Lanjutkan)
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fun main(args : Array<String>){
//slice()
// sliceArray()
//distinct()
//dataClass()
//saringPanjangStringSama()
chunked()
}
fun slice(){
val total = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
//slice use index
val slice = total.slice(3..6)
println(slice)
//slice use step
val sliceStep = total.slice(3..6 step 2)
println(sliceStep)
}
fun sliceArray(){
val index = listOf(2, 3, 5, 8)
val total = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val slice = total.slice(index)
println(slice)
}
fun distinct(){
val total = listOf(1, 2, 1, 3, 4, 5, 2, 3, 4, 5)
val distinct = total.distinct()
println(distinct)
}
fun dataClass(){
data class Item(val key: String, val value: Any)
val items = listOf(
Item("1", "Kotlin"),
Item("2", "is"),
Item("3", "Awesome"),
Item("3", "as"),
Item("3", "Programming"),
Item("3", "Language")
)
val distinctItems = items.distinctBy { it.key }
distinctItems.forEach {
println("${it.key} with value ${it.value}")
}
}
fun saringPanjangStringSama(){
val text = listOf("A", "B", "CC", "DD", "EEE", "F", "GGGG")
val distinct = text.distinctBy {
it.length
}
println(distinct)
}
fun chunked(){
val word = "QWERTY"
val chunked = word.chunked(3)
println(chunked)
val chunkedTransform = word.chunked(3) {
it.toString().toLowerCase()
}
println(chunkedTransform)
}
Kotlin
INFO