Kotlin Tutorial in Hindi | in Operators

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)

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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.