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-rw-r--r--swift.html.markdown32
1 files changed, 16 insertions, 16 deletions
diff --git a/swift.html.markdown b/swift.html.markdown
index 509c9d2f..a40e86c8 100644
--- a/swift.html.markdown
+++ b/swift.html.markdown
@@ -3,7 +3,7 @@ language: swift
contributors:
- ["Grant Timmerman", "http://github.com/grant"]
- ["Christopher Bess", "http://github.com/cbess"]
- - ["Joey Huang", "http://github.com/kamidox"]
+ - ["Joey Huang", "http://github.com/kamidox"]
- ["Anthony Nguyen", "http://github.com/anthonyn60"]
filename: learnswift.swift
---
@@ -12,7 +12,7 @@ Swift is a programming language for iOS and OS X development created by Apple. D
The official [Swift Programming Language](https://itunes.apple.com/us/book/swift-programming-language/id881256329) book from Apple is now available via iBooks.
-See also Apple's [getting started guide](https://developer.apple.com/library/prerelease/ios/referencelibrary/GettingStarted/RoadMapiOS/index.html), which has a complete tutorial on Swift.
+See also Apple's [getting started guide](https://developer.apple.com/library/prerelease/ios/referencelibrary/GettingStarted/DevelopiOSAppsSwift/), which has a complete tutorial on Swift.
```swift
// import a module
@@ -74,7 +74,7 @@ if someOptionalString != nil {
if someOptionalString!.hasPrefix("opt") {
print("has the prefix")
}
-
+
let empty = someOptionalString?.isEmpty
}
someOptionalString = nil
@@ -99,7 +99,7 @@ anyObjectVar = "Changed value to a string, not good practice, but possible."
/*
Comment here
-
+
/*
Nested comments are also supported
*/
@@ -298,7 +298,7 @@ print(numbers) // [3, 6, 18]
// Structures and classes have very similar capabilites
struct NamesTable {
let names = [String]()
-
+
// Custom subscript
subscript(index: Int) -> String {
return names[index]
@@ -329,7 +329,7 @@ public class Shape {
internal class Rect: Shape {
var sideLength: Int = 1
-
+
// Custom getter and setter property
private var perimeter: Int {
get {
@@ -340,11 +340,11 @@ internal class Rect: Shape {
sideLength = newValue / 4
}
}
-
+
// Lazily load a property
// subShape remains nil (uninitialized) until getter called
lazy var subShape = Rect(sideLength: 4)
-
+
// If you don't need a custom getter and setter,
// but still want to run code before and after getting or setting
// a property, you can use `willSet` and `didSet`
@@ -354,19 +354,19 @@ internal class Rect: Shape {
print(someIdentifier)
}
}
-
+
init(sideLength: Int) {
self.sideLength = sideLength
// always super.init last when init custom properties
super.init()
}
-
+
func shrink() {
if sideLength > 0 {
--sideLength
}
}
-
+
override func getArea() -> Int {
return sideLength * sideLength
}
@@ -398,13 +398,13 @@ class Circle: Shape {
override func getArea() -> Int {
return 3 * radius * radius
}
-
+
// Place a question mark postfix after `init` is an optional init
// which can return nil
init?(radius: Int) {
self.radius = radius
super.init()
-
+
if radius <= 0 {
return nil
}
@@ -458,7 +458,7 @@ enum Furniture {
case Desk(height: Int)
// Associate with String and Int
case Chair(String, Int)
-
+
func description() -> String {
switch self {
case .Desk(let height):
@@ -497,7 +497,7 @@ protocol ShapeGenerator {
class MyShape: Rect {
var delegate: TransformShape?
-
+
func grow() {
sideLength += 2
@@ -532,7 +532,7 @@ extension Int {
var customProperty: String {
return "This is \(self)"
}
-
+
func multiplyBy(num: Int) -> Int {
return num * self
}