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 necessary, however it’s not sufficient to know the true energy of the language.
Skilled Swift is right here to assist, by displaying…
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This part tells you a number of issues that you must know earlier than you get began, comparable to what you’ll want for {hardware} and software program, the place to search out the undertaking recordsdata 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 matter after which leap proper into the behind-the-scenes implementations.
The content material of this part will expose the inside workings of the kind system, in addition to get you intimately aware of 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 stream and have a look at Swift. You’ll develop a easy language characteristic, ifelse, to discover a number of the services Swift presents for creating highly effective, expressive abstractions.
Varieties are important to constructing Swift packages. The Swift compiler kind checks your code to confirm correctness, guarantee security and allow better optimization. You’ll achieve expertise concerning the completely different nominal sorts 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 instances to bear in mind.
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 features, courses and structs; how one can use protocols with related sorts; what kind erasure is and how one can 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 complicated e-book, we don’t solely clarify these subjects, but additionally examine how they’re constructed, how they’re represented, and how one can 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 kind 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 presents some ways to rapidly 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 right implementation of a string kind in Swift has been a controversial matter 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’ve in the present day. You’ll study how one can most successfully use strings, what they are surely, how they work and the way they’re represented.
When growing your app, you’ll typically take care of a myriad of information fashions and varied exterior items of information that you just’ll need to signify as information fashions in your app.
On this chapter, you’ll rapidly flick through the fundamentals of Codable, after which give attention to the superior supplies down the darkish corners of codable sorts.
Swift is a memory-safe and type-safe language. In some instances, you may want your code to be extraordinarily optimized, during which case the tiny overhead added by the protection checks from Swift could be too costly. You could be coping with an enormous stream of real-time information, manipulating massive recordsdata or different massive operations that take care of massive information.
On this chapter you may learn to use unsafe Swift to straight entry reminiscence via quite a lot of pointer sorts and how one can 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 features, Purposeful reactive programming, Goal-C interoperability, utilizing Instrumentation, and API design.
Larger-order features can simplify your code considerably by making it extra readable, loads shorter and simpler to reuse. You will study what are increased order features, what’s currying and study examples of how they’re utilized in the usual library.
On this chapter you may study an important and refined ideas of purposeful 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 house 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 means that feels as if it had been designed for both.
Being an amazing 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, how one can use them to sharpen your abilities and how one can establish areas of enchancment in your code.
On this chapter you may study superior options of the Devices app, and how one can use it to enhance your code.
Discover a number of subjects to boost your skillset and instinct for designing nice APIs.
Matters like Documentation, Encapsulation, versioning, and several other highly effective language options.
