Kotlin list map to another list

Create a map from list kotlin

fun main() {
    val numbers = listOf("one", "two", "three", "four")

    println(numbers.associateBy { it.first().toUpperCase() })
    println(numbers.associateBy(keySelector = { it.first().toUpperCase() }, valueTransform = { it.length }))
}

Kotlin list map to another list

12,12,344,5

Similar codes

4 votes254 views2 answers
How to set layout params in android programmatically kotlin
Kotlin
0 vote263 views1 answer
Button inside a recycle view in android in kotlin
Kotlin
0 vote228 views1 answer
Kotlin check if element in array
Kotlin
0 vote230 views2 answers
Remove autofill edittext android
Kotlin
3 votes243 views1 answer
Kotlin check if string contains
Kotlin
3 votes237 views1 answer
Start new activity kotlin
Kotlin
1 vote262 views1 answer
How to limit decimal in double kotlin
Kotlin
0 vote304 views1 answer
Link to bitmap
Kotlin
0 vote274 views2 answers
Horizontal recyclerview item width half of screen android
Kotlin
0 vote235 views1 answer
Android studio handler deprecated
Kotlin