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https://github.com/seanpm2001/learn-swift
A repository for showcasing my knowledge of the Swift programming language, and continuing to learn the language.
https://github.com/seanpm2001/learn-swift
apple collection education gpl3 gplv3 knowledge language learn-swift learn-swift-lang learn-swift-language md swift swift-collection swift-lang swift-language txt
Last synced: about 1 month ago
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A repository for showcasing my knowledge of the Swift programming language, and continuing to learn the language.
- Host: GitHub
- URL: https://github.com/seanpm2001/learn-swift
- Owner: seanpm2001
- License: gpl-3.0
- Created: 2021-11-27T00:46:43.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2021-11-27T03:21:28.000Z (about 3 years ago)
- Last Synced: 2024-10-12T14:42:00.031Z (2 months ago)
- Topics: apple, collection, education, gpl3, gplv3, knowledge, language, learn-swift, learn-swift-lang, learn-swift-language, md, swift, swift-collection, swift-lang, swift-language, txt
- Language: Swift
- Homepage: https://github.com/seanpm2001/Learn-Swift/
- Size: 243 KB
- Stars: 3
- Watchers: 3
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: COPYINGL
- Authors: AUTHORS
Awesome Lists containing this project
README
***
### Learning Swift (programming language)
I know very little about programming in the Swift programming language. This document will go over all my knowledge of the Swift programming language.
#### Hello World in Swift
Writing a Hello World program in Swift is a lot more difficult than it should be.
```swift
NSString *str = @"hello,";
str = [str stringByAppendingString:@" world"];
```
It can also be written like this:
```swift
var str = "hello,"
str += " world"
```
or possibly like this:
```swift
NSString "Hello World";
```
_/!\ This example has not been tested yet, and may not work_
#### Comments in Swift
Comments in Swift are identical to comments in Java, JavaScript, C, CSS, Google Go, C++, etc..
```swift
// This is a single line comment
/* This
is a multiline
comment */
/* Multi-line comments
* can also
* be written
* like this */
```
#### Break keyword in Swift
```swift
break;
```
To this day, I am still not entirely sure what the `break` keyword does, but most languages support it.
_/!\ This example has not been tested yet, and may not work_
#### Integers in Swift
Swift uses the `let` keyword to set a variable/integer/string in the language. This is an example of getting integers to work.
```swift
let x = int(2);
let y = int(16);
return x ** y;
```
_/!\ This example has not been tested yet, and may not work_
#### Other knowledge of the Swift programming language
1. Swift is a language developed by Apple Inc.
2. Swift is a default language on modern MacOS, iOS, iPadOS, WatchOS, and tvOS, but is also supported on Linux and Windows
3. Swift is a curly bracket and semicolon language
4. Swift uses the `*.swift` file extension
5. Swift is an open source language
6. No other knowledge of the Swift programming language
***