This e book is for intermediate Swift builders who already know the fundamentals of Swift and wish to deepen their information and understanding of the language.
- Protocols & Generics
- Numerics & Ranges
- Sequences & Collections
- Unsafe
- Useful 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, nevertheless it’s not sufficient to know the true energy of the language.
Knowledgeable Swift is right here to assist, by exhibiting…
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This part tells you just a few issues you have to know earlier than you get began, comparable 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 fundamental 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 subject after which leap proper into the behind-the-scenes implementations.
The content material of this part will expose the internal workings of the sort system, in addition to get you intimately aware of protocols and generics.
Welcome to Knowledgeable 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 stream and take a look at Swift. You’ll develop a easy language characteristic, ifelse, to discover a number of the services Swift affords for creating highly effective, expressive abstractions.
Varieties are important to constructing Swift applications. The Swift compiler kind checks your code to confirm correctness, guarantee security and allow larger optimization. You’ll acquire expertise concerning the completely different nominal varieties and mutation with a number of small examples. You’ll additionally implement mutable worth semantics for a QuadTree kind 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 aware of 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 right way to use protocols with related varieties; what kind erasure is and the right way to put all that collectively to make a coherent API.
This sections covers the bottom layer of writing Swift applications: Numerics, Ranges, Strings, Sequences, Collections, Codable and the much less apparent, however crucial subject – Unsafe.
As you’d anticipate from a complicated e book, we don’t solely clarify these subjects, but additionally examine how they’re constructed, how they’re represented, and the right way to use them successfully.
Swift is a platform-agnostic, general-purpose programming language that helps varied numeric varieties 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 take a look at vary varieties 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 varieties like Array, Dictionary and Set. You’ll see how these protocols let you write generic algorithms that function throughout households of collections. The usual library affords 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 kind.
The correct implementation of a string kind in Swift has been a controversial subject for fairly a while. The design is a fragile stability between Unicode correctness, encoding agnosticism, ease-of-use and high-performance. Nearly each main launch of Swift has refined the String kind to the superior design we have now right this moment. You’ll be taught 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 typically cope with a myriad of information fashions and varied exterior items of information that you just’ll wish to symbolize as knowledge fashions in your app.
On this chapter, you’ll shortly flick through the fundamentals of Codable, after which give attention to the superior supplies down the darkish corners of codable varieties.
Swift is a memory-safe and type-safe language. In some circumstances, you may want your code to be extraordinarily optimized, during which case the tiny overhead added by the protection checks from Swift may be too costly. You may 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 via a wide range of pointer varieties and the right 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 subjects like Larger order capabilities, Useful reactive programming, Goal-C interoperability, utilizing Instrumentation, and API design.
Larger-order capabilities can simplify your code considerably by making it extra readable, lots shorter and simpler to reuse. You will be taught 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 be taught an important 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 have been in manufacturing for a few years. In your personal apps, you’ll typically have a large Goal-C codebase that simply doesn’t really feel at dwelling inside your Swift code or wish 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 means 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 right way to use them to sharpen your expertise and the right way to determine areas of enchancment in your code.
On this chapter you may study superior options of the Devices app, and the right way to use it to enhance your code.
Discover just a few subjects to reinforce your skillset and instinct for designing nice APIs.
Matters like Documentation, Encapsulation, versioning, and a number of other highly effective language options.
