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substringBeforeLast

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
fun String.substringBeforeLast(
    delimiter: Char, 
    missingDelimiterValue: String = this
): String
fun String.substringBeforeLast(
    delimiter: String, 
    missingDelimiterValue: String = this
): String

Returns a substring before the last occurrence of delimiter. If the string does not contain the delimiter, returns missingDelimiterValue which defaults to the original string.

© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/substring-before-last.html