Question

How to use an anonymous function in Kotlin

Answer 1

// Anonymous function = A function with no identifier.

fun main() {
    // Anonymous function (lambda) that takes two Ints and returns their sum.
    // { a, b -> a + b }  ← Kotlin’s concise lambda syntax.
    val add: (Int, Int) -> Int = { a, b -> a + b }

    // Use the anonymous function
    val result = add(10, 20)

    println(result)
}


/*
run:

30

*/

 

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Answer 2

fun main() {
    val add = { a: Int, b: Int -> a + b }
    
    println(add(10, 20))
}


/*
run:

30

*/

 

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Answer 3

fun main() {
    println({ a: Int, b: Int -> a + b }(10, 20))
}


/*
run:

30

*/

 

70+ SQL courses for beginners and professionals