// Demo of currying
func addTwoNums(a: Int)(num: Int) -> Int {
return a + num
}
let addToFour = addTwoNums(4)
let result = addToFour(num: 6)
print("result: \(result)")
func greaterThan(comparor: Int)(input: Int) -> Bool {
return input > comparor
}
let greaterThan10 = greaterThan(10)
let b1 = greaterThan10(input: 10)
let b2 = greaterThan10(input: 4)
print("b1: \(b1)")
print("b2: \(b2)")
// Demo of uncurrying
let foo = {(a: Int) -> (Int) -> Int in
return {(b: Int) -> Int in
return a * a + b * b
}
}
let interesting = foo(3)(4)
print("interesting: \(interesting)")
let interestingAgain = (foo(3))(4)
print("interestingAgain: \(interestingAgain)")
原文链接:https://www.f2er.com/swift/325128.html