Closures Examples

Closures.swift

//: Playground - Closures

// Closure take no parameter and return nothing
let sayHello: () -> Void = {
    print("Hello")
}

sayHello()

// Closure take one parameter and return 1 parameter
let value: (Int) -> Int = { (value1) in
    return value1
}

print(value(5))

// Closure take two parameter and return 1 parameter
let add: (Int, Int) -> Int = { (value1, value2) in
    return value1 + value2
}

print(add(5, 4))

// Closure take two parameter and return String parameter
let addValues: (Int, Int) -> String = { (value1, value2) -> String in
    return String("Sum is: \(value1 + value2)")
}

print(addValues(5, 4))