kotlin-stdlib/kotlin.collections/dropLastWhile

dropLastWhile

inline fun <T> Array<out T>.dropLastWhile(predicate: (T) -> Boolean): List<T>(source)

inline fun ByteArray.dropLastWhile(predicate: (Byte) -> Boolean): List<Byte>(source)

inline fun ShortArray.dropLastWhile(predicate: (Short) -> Boolean): List<Short>(source)

inline fun IntArray.dropLastWhile(predicate: (Int) -> Boolean): List<Int>(source)

inline fun LongArray.dropLastWhile(predicate: (Long) -> Boolean): List<Long>(source)

inline fun FloatArray.dropLastWhile(predicate: (Float) -> Boolean): List<Float>(source)

inline fun DoubleArray.dropLastWhile(predicate: (Double) -> Boolean): List<Double>(source)

inline fun BooleanArray.dropLastWhile(predicate: (Boolean) -> Boolean): List<Boolean>(source)

inline fun CharArray.dropLastWhile(predicate: (Char) -> Boolean): List<Char>(source)

inline fun <T> List<T>.dropLastWhile(predicate: (T) -> Boolean): List<T>(source)

Returns a list containing all elements except last elements that satisfy the given predicate.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val chars = ('a'..'z').toList()
println(chars.drop(23)) // [x, y, z]
println(chars.dropLast(23)) // [a, b, c]
println(chars.dropWhile { it < 'x' }) // [x, y, z]
println(chars.dropLastWhile { it > 'c' }) // [a, b, c] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = ('a'..'z').toList()
println(chars.drop(23)) // [x, y, z]
println(chars.dropLast(23)) // [a, b, c]
println(chars.dropWhile { it < 'x' }) // [x, y, z]
println(chars.dropLastWhile { it > 'c' }) // [a, b, c] 
Open in Playground →
Target: JVMRunning on v.2.1.20

@ExperimentalUnsignedTypes

inline fun UIntArray.dropLastWhile(predicate: (UInt) -> Boolean): List<UInt>(source)

@ExperimentalUnsignedTypes

inline fun ULongArray.dropLastWhile(predicate: (ULong) -> Boolean): List<ULong>(source)

@ExperimentalUnsignedTypes

inline fun UByteArray.dropLastWhile(predicate: (UByte) -> Boolean): List<UByte>(source)

@ExperimentalUnsignedTypes

inline fun UShortArray.dropLastWhile(predicate: (UShort) -> Boolean): List<UShort>(source)

Returns a list containing all elements except last elements that satisfy the given predicate.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val chars = ('a'..'z').toList()
println(chars.drop(23)) // [x, y, z]
println(chars.dropLast(23)) // [a, b, c]
println(chars.dropWhile { it < 'x' }) // [x, y, z]
println(chars.dropLastWhile { it > 'c' }) // [a, b, c] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = ('a'..'z').toList()
println(chars.drop(23)) // [x, y, z]
println(chars.dropLast(23)) // [a, b, c]
println(chars.dropWhile { it < 'x' }) // [x, y, z]
println(chars.dropLastWhile { it > 'c' }) // [a, b, c] 
Open in Playground →
Target: JVMRunning on v.2.1.20

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