Question

How to use an anonymous function in Swift

Answer 1

// Anonymous function = A function with no identifier.

// Anonymous function (closure) that takes two Ints and returns their sum.
// { (a: Int, b: Int) -> Int in a + b }  ← Swift’s full closure syntax.
let add: (Int, Int) -> Int = { (a: Int, b: Int) -> Int in
    a + b
}

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

print(result)


/*
run:

30

*/

 

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Answer 2

print({ (a: Int, b: Int) in a + b }(10, 20))


/*
run:

30

*/

 

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