filter
inline fun <T> Array<out T>.filter(
predicate: (T) -> Boolean
): List<T>
inline fun ShortArray.filter(
predicate: (Short) -> Boolean
): List<Short>
inline fun FloatArray.filter(
predicate: (Float) -> Boolean
): List<Float>
inline fun DoubleArray.filter(
predicate: (Double) -> Boolean
): List<Double>
inline fun BooleanArray.filter(
predicate: (Boolean) -> Boolean
): List<Boolean>
@ExperimentalUnsignedTypes inline fun ULongArray.filter(
predicate: (ULong) -> Boolean
): List<ULong>
@ExperimentalUnsignedTypes inline fun UByteArray.filter(
predicate: (UByte) -> Boolean
): List<UByte>
@ExperimentalUnsignedTypes inline fun UShortArray.filter(
predicate: (UShort) -> Boolean
): List<UShort>
Returns a list containing only elements matching the given predicate.
Returns a new map containing all key-value pairs matching the given predicate.
The returned map preserves the entry iteration order of the original map.
import kotlin.test.*
import java.util.*
fun main(args: Array<String>) {
//sampleStart
val originalMap = mapOf("key1" to 1, "key2" to 2, "key3" to 3)
val filteredMap = originalMap.filter { it.value < 2 }
println(filteredMap) // {key1=1}
// original map has not changed
println(originalMap) // {key1=1, key2=2, key3=3}
val nonMatchingPredicate: ((Map.Entry<String, Int>)) -> Boolean = { it.value == 0 }
val emptyMap = originalMap.filter(nonMatchingPredicate)
println(emptyMap) // {}
//sampleEnd
}