Create a map from list kotlin

Make map kotlin

val map = mapOf(1 to "x", 2 to "y", -1 to "zz")

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 }))
}

Similar codes

2 votes157 views6 answers
Hide keyboard android
Kotlin
0 vote177 views1 answer
Only allow numbers android
Kotlin
0 vote213 views3 answers
While loop kotlin
Kotlin
6 votes188 views2 answers
Okhttp dependency
Kotlin
1 vote161 views1 answer
Check if network is metered android
Kotlin
3 votes161 views2 answers
How to get char input in kotlin
Kotlin
2 votes163 views1 answer
Kotlin garbage collection
Kotlin
1 vote163 views1 answer
Kotlin class
Kotlin
1 vote203 views1 answer
Detected multiple kotlin daemon sessions at build/kotlin/sessions
Kotlin
1 vote192 views1 answer
Run kotlin in terminal
Kotlin