mapIndexedNotNull
inline fun <R : Any> CharSequence.mapIndexedNotNull(transform: (index: Int, Char) -> R?): List<R>(source)
Returns a list containing only the non-null results of applying the given transform function to each character and its index in the original char sequence.
Since Kotlin
1.0Parameters
transform
function that takes the index of a character and the character itself and returns the result of the transform applied to the character.