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

1 vote335 views1 answer
Kotlin coroutine builders
Kotlin
3 votes332 views1 answer
Make map kotlin
Kotlin
1 vote322 views1 answer
Fileoutputstream kotlin example
Kotlin
0 vote272 views1 answer
Kotlinx coroutines dependency
Kotlin
0 vote301 views1 answer
Var and val in kotlin
Kotlin
1 vote381 views1 answer
How to initialize livedata kotlin
Kotlin
2 votes336 views1 answer
Add moduel to gradle android
Kotlin
0 vote331 views1 answer
Kotlin constante
Kotlin
0 vote346 views2 answers
Kotlin while loop
Kotlin
-1 vote349 views1 answer
Kotlin time hours
Kotlin