68 lines
1.6 KiB
HTML
68 lines
1.6 KiB
HTML
<h2>Comments</h2>
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<pre><code>// this is a comment
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/* this is also a comment,
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but written over multiple lines */
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</code></pre>
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<h2>Numbers</h2>
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<pre><code>42
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-23
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3.14159
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0.1
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-273.15
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1.25e-2
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0xC.3p0
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1_000_000
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1_000_000.000_000_1</code></pre>
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<h2>Strings</h2>
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<pre><code>let someString = "Some string literal value"
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var emptyString = ""
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// String interpolation
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let multiplier = 3
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"\(multiplier) times 2.5 is \(Double(multiplier) * 2.5)"</code></pre>
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<h2>Control flow</h2>
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<pre><code>for index in 1...5 {
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println("\(index) times 5 is \(index * 5)")
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}
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for _ in 1...power {
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answer *= base
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}
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while square < finalSquare {
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// roll the dice
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if ++diceRoll == 7 { diceRoll = 1 }
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// move by the rolled amount
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square += diceRoll
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if square < board.count {
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// if we're still on the board, move up or down for a snake or a ladder
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square += board[square]
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}
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}
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switch someCharacter {
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case "a", "e", "i", "o", "u":
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println("\(someCharacter) is a vowel")
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case "b", "c", "d", "f", "g", "h", "j", "k", "l", "m",
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"n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z":
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println("\(someCharacter) is a consonant")
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default:
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println("\(someCharacter) is not a vowel or a consonant")
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}
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</code></pre>
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<h2>Classes and attributes</h2>
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<pre><code>class MyViewController: UIViewController {
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@IBOutlet weak var button: UIButton!
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@IBOutlet var textFields: [UITextField]!
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@IBAction func buttonTapped(AnyObject) {
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println("button tapped!")
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}
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}
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@IBDesignable
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class MyCustomView: UIView {
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@IBInspectable var textColor: UIColor
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@IBInspectable var iconHeight: CGFloat
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/* ... */
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}</code></pre>
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