/Kotlin/How to get index of item in arraylist in kotlin

How to get index of item in arraylist in kotlin

val b: List<Int> = a.mapIndexed { i, b -> if (b) i else null }.filterNotNull().toList()
val c: List<Int> = a.withIndex().filter { it.value }.map { it.index }

Similar codes

1 vote145 views1 answer
The complete android 10
Kotlin
-1 vote125 views1 answer
Recyclerview onclicklistener kotlin
Kotlin
0 vote192 views2 answers
How to verify email in kotlin
Kotlin
0 vote141 views1 answer
Preferencemanager is deprecated
Kotlin
0 vote143 views1 answer
Kotlin fold
Kotlin
4 votes180 views1 answer
Kotlin remove name from an activity
Kotlin
-1 vote154 views3 answers
Change spinner text color android kotlin
Kotlin
0 vote137 views2 answers
Remove autofill edittext android
Kotlin
5 votes167 views3 answers
Kotlin mutable list implementation
Kotlin
5 votes116 views1 answer
Onbackpressed in fragment java
Kotlin