in Operator in Kotlin Hindi

The in operator is used to check whether an object belongs to a collection.

Operator Expression Translates to
in a in b b.contains(a)
!in a !in b !b.contains(a)

Example: in Operator

fun main(args: Array<String>) {

    val numbers = intArrayOf(1, 4, 42, -3)

    if (4 in numbers) {
        println("numbers array contains 4.")
    }
}

When you run the program, the output will be:

numbers array contains 4.