W3cubDocs

/Kotlin

filterNot

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

inline fun CharSequence.filterNot(
    predicate: (Char) -> Boolean
): CharSequence

Returns a char sequence containing only those characters from the original char sequence that do not match the given predicate.

import kotlin.test.*

fun main(args: Array<String>) {
//sampleStart
val text = "a1b2c3d4e5"

val textWithoutDigits = text.filterNot { it.isDigit() }

println(textWithoutDigits) // abcde
//sampleEnd
}

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

inline fun String.filterNot(
    predicate: (Char) -> Boolean
): String

Returns a string containing only those characters from the original string that do not match the given predicate.

import kotlin.test.*

fun main(args: Array<String>) {
//sampleStart
val text = "a1b2c3d4e5"

val textWithoutDigits = text.filterNot { it.isDigit() }

println(textWithoutDigits) // abcde
//sampleEnd
}

© 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/filter-not.html