contains
Deprecated: The function has unclear behavior when searching for NaN or zero values and will be removed soon. Use 'any { it == element }' instead to continue using this behavior, or '.asList().contains(element: T)' to get the same search behavior as in a list.
Deprecated: The function has unclear behavior when searching for NaN or zero values and will be removed soon. Use 'any { it == element }' instead to continue using this behavior, or '.asList().contains(element: T)' to get the same search behavior as in a list.
Returns true if element is found in the array.
Returns true if element is found in the collection.
Checks if the map contains the given key.
This method allows to use the x in map syntax for checking whether an object is contained in the map.
import kotlin.test.*
import java.util.*
fun main(args: Array<String>) {
//sampleStart
val map: Map<String, Int> = mapOf("x" to 1)
println("map.contains("x") is ${map.contains("x")}") // true
println(""x" in map is ${"x" in map}") // true
println("map.contains("y") is ${map.contains("y")}") // false
println(""y" in map is ${"y" in map}") // false
//sampleEnd
}