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
- Practical 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 essential, however 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 a number of issues it is advisable know earlier than you get began, corresponding to what you’ll want for {hardware} and software program, the place to seek out the undertaking 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 lessons), 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 kind system, in addition to get you intimately conversant in protocols and generics.
Welcome to Knowledgeable Swift. On this chapter, you’ll find out about a few of the motivations behind creating the Swift language, take a brief however deep dive into the Swift toolchain circulation and have a look at Swift. You’ll develop a easy language characteristic, ifelse, to discover a few of the services Swift presents for creating highly effective, expressive abstractions.
Varieties are important to constructing Swift applications. The Swift compiler sort checks your code to confirm correctness, guarantee security and allow larger optimization. You’ll acquire expertise concerning the totally different nominal varieties 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 not often used options.
You’ll additionally find out about widespread patterns that use protocols in addition to some helpful gotchas and edge circumstances to remember.
On this chapter, you may get intimately conversant in generics by persevering with to work on the networking library you began within the earlier chapter. You will discover ways to write generic features, lessons and structs; the best way to use protocols with related varieties; 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 applications: Numerics, Ranges, Strings, Sequences, Collections, Codable and the much less apparent, however essential subject – Unsafe.
As you’d count on from a sophisticated e book, we don’t solely clarify these subjects, 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 numerous numeric varieties with differing house, 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 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 help you write generic algorithms that function throughout households of collections. The usual library presents 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 Recreation 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 subject 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 now we have at the 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 usually take care of a myriad of knowledge fashions and numerous exterior items of knowledge that you simply’ll wish to characterize as information fashions in your app.
On this chapter, you’ll shortly flick thru the fundamentals of Codable, after which deal with 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, wherein case the tiny overhead added by the security checks from Swift is perhaps too costly. You is perhaps coping with an enormous stream of real-time information, manipulating giant information or different giant operations that take care of giant information.
On this chapter you may discover ways to use unsafe Swift to instantly entry reminiscence by means of a wide range of pointer varieties and the best way to work together with the reminiscence system instantly.
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 Increased order features, Practical reactive programming, Goal-C interoperability, utilizing Instrumentation, and API design.
Increased-order features can simplify your code considerably by making it extra readable, so much shorter and simpler to reuse. You will be taught what are larger order features, what’s currying and study 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 continues to be a closely used language in legacy codebases and apps which were in manufacturing for a few years. In your personal apps, you’ll usually have a large Goal-C codebase that simply doesn’t really feel at house 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 discover ways 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 had been designed for both.
Being a fantastic iOS software program engineer is not solely about being a grandmaster of the Swift language. It is also about figuring out 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 find out about superior options of the Devices app, and the best way to use it to enhance your code.
Discover a number of subjects to boost your skillset and instinct for designing nice APIs.
Subjects like Documentation, Encapsulation, versioning, and a number of other highly effective language options.
