kotlin.text.mapIndexedNotNullTo
mapIndexedNotNullTo
inline fun <R : Any, C : MutableCollection<in R>> CharSequence.mapIndexedNotNullTo( destination: C, transform: (index: Int, Char) -> R? ): C
Applies the given transform function to each character and its index in the original char sequence and appends only the non-null results to the given 登录查看完整内容