mirror of
https://github.com/apple/swift.git
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Iliya Lyan
77 lines
1.9 KiB
Markdown
77 lines
1.9 KiB
Markdown
# ``Swift``
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Build apps using a powerful open language.
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## Overview
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Swift includes modern features like type inference, optionals, and closures, which
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make the syntax concise yet expressive. Swift ensures your code is fast and efficient,
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while its memory safety and native error handling make the language safe by design.
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Writing Swift code is interactive and fun in Swift Playgrounds, playgrounds in Xcode,
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and the REPL.
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```swift
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var interestingNumbers = [
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"primes": [2, 3, 5, 7, 11, 13, 17],
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"triangular": [1, 3, 6, 10, 15, 21, 28],
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"hexagonal": [1, 6, 15, 28, 45, 66, 91]
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]
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for key in interestingNumbers.keys {
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interestingNumbers[key]?.sort(by: >)
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}
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print(interestingNumbers["primes"]!)
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// Prints "[17, 13, 11, 7, 5, 3, 2]"
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```
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### Learn Swift
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If you're new to Swift, read [The Swift Programming Language](https://docs.swift.org/swift-book/)
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for a quick tour, a comprehensive language guide, and a full reference manual. If
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you're new to programming, check out [Swift Playgrounds](https://www.apple.com/swift/playgrounds/)
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on iPad.
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Swift is developed in the open. To learn more about the open source Swift project
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and community, visit [Swift.org](https://swift.org).
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## Topics
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### Standard Library
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- ``Swift/Int``
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- ``Swift/Double``
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- ``Swift/String``
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- ``Swift/Array``
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- ``Swift/Dictionary``
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- <doc:swift-standard-library>
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### Observation
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- <doc:Observation-collection>
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### Distributed Actors
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- <doc:Distributed-collection>
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### Regular Expression DSL
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- <doc:RegexBuilder-collection>
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### Low-Level Atomic Operations
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- <doc:Synchronization-collection>
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### Data Modeling
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- <doc:choosing-between-structures-and-classes>
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- <doc:adopting-common-protocols>
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### Language Interoperability with C and C++
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- <doc:customizing-your-c-code-for-swift>
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- <doc:using-imported-c-structs-and-unions-in-swift>
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- <doc:using-imported-c-functions-in-swift>
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- <doc:using-imported-c-macros-in-swift>
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