This e book is for intermediate Swift builders who already know the fundamentals of Swift and need to deepen their data and understanding of the language.
- Protocols & Generics
- Numerics & Ranges
- Sequences & Collections
- Unsafe
- Purposeful Reactive Programming
- Goal-C Interoperability
- Library & API Design
Swift is a wealthy language with a plethora of options to supply. Studying the official documentation or entry-level books is vital, but it surely’s not sufficient to know the true energy of the language.
Skilled Swift is right here to assist, by exhibiting…
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This part tells you a number of issues you have to know earlier than you get began, akin to what you’ll want for {hardware} and software program, the place to seek out the mission information for this e book, and extra.
The primary part of this e book covers the essential constructing blocks of the Swift language: The kind system (enums, structs and courses), Protocols and Generics. We’ll begin with a quick refresher of every matter after which leap proper into the behind-the-scenes implementations.
The content material of this part will expose the interior workings of the sort system, in addition to get you intimately accustomed to protocols and generics.
Welcome to Skilled Swift. On this chapter, you’ll study a number of the motivations behind creating the Swift language, take a brief however deep dive into the Swift toolchain movement and have a look at Swift. You’ll develop a easy language characteristic, ifelse, to discover a number of the amenities Swift provides for creating highly effective, expressive abstractions.
Varieties are important to constructing Swift packages. The Swift compiler sort checks your code to confirm correctness, guarantee security and allow higher optimization. You’ll achieve expertise in regards to the totally different nominal sorts and mutation with a number of small examples. You’ll additionally implement mutable worth semantics for a QuadTree sort utilizing copy-on-write dynamic storage.
On this chapter you may undergo a quick refresher on the fundamentals of protocols in addition to a few of their extra hardly ever used options.
You’ll additionally study widespread patterns that use protocols in addition to some helpful gotchas and edge circumstances to remember.
On this chapter, you may get intimately accustomed to generics by persevering with to work on the networking library you began within the earlier chapter. You will learn to write generic capabilities, courses and structs; the best way to use protocols with related sorts; what sort erasure is and the best way to put all that collectively to make a coherent API.
This sections covers the bottom layer of writing Swift packages: Numerics, Ranges, Strings, Sequences, Collections, Codable and the much less apparent, however essential matter – Unsafe.
As you’d anticipate from a sophisticated e book, we don’t solely clarify these matters, but additionally examine how they’re constructed, how they’re represented, and the best way to use them successfully.
Swift is a platform-agnostic, general-purpose programming language that helps varied numeric sorts with differing area, vary, accuracy and efficiency traits. Constructing two apps (BitViewer and Mandlebrot), you’ll see how Swift simplifies programming with protocols and generics. You’ll additionally have a look at vary sorts and the way operators and generics as soon as once more come to the rescue in implementing these language options.
Sequence, Assortment and associated protocols type the spine of the usual library for sorts like Array, Dictionary and Set. You’ll see how these protocols assist you to write generic algorithms that function throughout households of collections. The usual library provides some ways to shortly construct customized sequences and collections. You’ll use these to construct a number of examples together with a customized mutable assortment to implement Conway’s Sport of Life. You’ll additionally create a chunking algorithm that can be utilized with any assortment sort.
The right implementation of a string sort in Swift has been a controversial matter for fairly a while. The design is a fragile steadiness between Unicode correctness, encoding agnosticism, ease-of-use and high-performance. Nearly each main launch of Swift has refined the String sort to the superior design we’ve got right now. You’ll study how one can most successfully use strings, what they are surely, how they work and the way they’re represented.
When creating your app, you’ll usually cope with a myriad of knowledge fashions and varied exterior items of knowledge that you just’ll need to symbolize as knowledge fashions in your app.
On this chapter, you’ll shortly flick through the fundamentals of Codable, after which concentrate on the superior supplies down the darkish corners of codable sorts.
Swift is a memory-safe and type-safe language. In some circumstances, you may want your code to be extraordinarily optimized, through which case the tiny overhead added by the security checks from Swift is likely to be too costly. You is likely to be coping with an enormous stream of real-time knowledge, manipulating giant information or different giant operations that cope with giant knowledge.
On this chapter you may learn to use unsafe Swift to straight entry reminiscence by means of a wide range of pointer sorts and the best way to work together with the reminiscence system straight.
The ultimate part of this e book covers superior strategies to super-charge your Swift powers, and use all of what Swift has to supply.
We’ll cowl matters like Increased order capabilities, Purposeful reactive programming, Goal-C interoperability, utilizing Instrumentation, and API design.
Increased-order capabilities can simplify your code considerably by making it extra readable, lots shorter and simpler to reuse. You will study what are larger order capabilities, what’s currying and look at examples of how they’re utilized in the usual library.
On this chapter you may study crucial and refined ideas of practical reactive programming and how one can apply these ideas to your apps.
Prefer it or not, Goal-C remains to be a closely used language in legacy codebases and apps which were in manufacturing for a few years. In your individual apps, you’ll usually have a large Goal-C codebase that simply doesn’t really feel at residence inside your Swift code or need to use a few of your shiny new Swift code in your Goal-C code.
On this chapter, you may learn to create a healthful expertise for customers of each the Goal-C and Swift parts of your codebase in a manner that feels as if it have been designed for both.
Being an incredible iOS software program engineer is not solely about being a grandmaster of the Swift language. It is also about realizing which instruments the platform places at your disposal, the best way to use them to sharpen your expertise and the best way to establish areas of enchancment in your code.
On this chapter you may study superior options of the Devices app, and the best way to use it to enhance your code.
Discover a number of matters to boost your skillset and instinct for designing nice APIs.
Subjects like Documentation, Encapsulation, versioning, and a number of other highly effective language options.
