fun <T> Sequence<T>.lastIndexOf(element: T): Int
Returns last index of element, or -1 if the sequence does not contain element.
The operation is terminal.
© 2010–2018 JetBrains s.r.o.
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/last-index-of.html