Function as a return value in Swift
func makeSum() -> (a: Int, b: Int) -> Int {
return { (a, b) in a + b }
}
let sumFunc = makeSum()
let sum = sumFunc(a: 5, b: 8)
//sum is 13
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func makeSum() -> (a: Int, b: Int) -> Int {
return { (a, b) in a + b }
}
let sumFunc = makeSum()
let sum = sumFunc(a: 5, b: 8)
//sum is 13