Swift Getting Started

1. Variable

var (mutable)

var age = 10

let (immutable)

let name = "Capung"

or with data type:

var age: Int = 10
let name: String = "Capung"
var isCool: Bool = true
let gender: Character = "M"

2. Print log

print()

contoh:

print("Name: ")
print(name) 
print("My Name is \(name)")

3.  If condition

if age > 10 {
    print("older than 10 years old")
} else {
    print("child boy")
}

4. Function

Void/ without return data

func calculate() {
    let a = 2
    let b = 2
    print(a + b)
}

with return data type

func calculate() -> Int {
    let a = 2
    let b = 2
    let c = 1
    return a + b - c
}

with parameter

func calculate(a: Int, b: Int) {
    print(a + b)
}

calculate(a: 1, b: 2)

 or

func calculate(_ a: Int, _ b: Int) {
    print(a + b)
}

calculate(1, 2)

5. Class

class Animal {
    let name: String = "Doggy"
    var age: String = "12 Month"

    func call() {
        print("bark bark bark")
    }

}

let Dog = Animal()
print(Animal.name)
Dog.call()

2018