Download Mastering Swift 2 by Jon Hoffman PDF

By Jon Hoffman

Dive into the newest unlock of the fast programming language with this complex Apple improvement publication for developing unparalleled iOS and osX applications

About This Book

• Harness the most recent and so much complicated good points of rapid 2 to increase caliber iOS and OSX applications
• complete assurance of all of the complex positive factors of quick and information on complicated layout techniques
• Dive deep into protocol extensions, examine new blunders dealing with version, and use featured rapid layout styles to put in writing extra effective code

Who This e-book Is For

This publication is for builders that are looking to dive into the latest model of quick. if you would like in-depth wisdom of a few of the main subtle components of fast improvement together with protocol extensions, error-handling, layout styles, and concurrency, studying fast 2 can provide counsel on easy methods to use and practice them on your personal projects.

What you'll Learn

• Dive into the center parts of fast 2 together with operators, collections, keep an eye on move, and functions
• Create and use sessions, constructions, and enums together with object-oriented subject matters corresponding to inheritance, protocols, and extensions
• enhance a realistic realizing of subscripts, optionals, and closures
• methods to use the hot protocol extension and blunder dealing with positive factors of quick 2
• upload concurrency in your functions utilizing Grand vital Dispatch
• grasp Objective-C interoperability with combine and Match
• entry community assets utilizing Swift
• enforce a variety of general layout styles within the fast language

In Detail

At their around the globe Developer's convention (WWDC) in 2015, Apple introduced quick 2, a tremendous replace to the leading edge programming language they first unveiled to the area the yr prior to. quick 2 beneficial properties fascinating improvements to the unique new release of fast, performing, as Apple placed it themselves as “a successor to the C and Objective-C languages.” – This e-book demonstrates easy methods to get the main from those new positive aspects, and offers you the talents and data you must strengthen dynamic iOS and OS X applications.

Learn the way to harness the most recent positive aspects of speedy 2 todevelop complex purposes on quite a lot of structures with this state-of-the-art improvement consultant. Exploring and demonstrating tips to take on complicated issues reminiscent of Objective-C interoperability, ARC, closures, and concurrency, you'll strengthen your rapid services and develop into much more fluent during this very important and leading edge language. With examples that reveal the best way to positioned the innovations into perform, and layout styles and most sensible practices, you'll be writing larger iOS and OSX purposes in with a brand new point of class and control.

Style and approach

This publication takes an example-based strategy the place each one idea coated is supported by way of instance code not to basically offer you a very good knowing of the idea that, but additionally to illustrate tips to appropriately enforce it.

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Additional resources for Mastering Swift 2

Sample text

How do we handle lost messages? Do we wait for fresh data, request a resend, or do we build some kind of reliability layer that ensures messages cannot be lost? What if that layer itself crashes? • What if we need to use a different network transport? Say, multicast instead of TCP unicast? Or IPv6? Do we need to rewrite the applications, or is the transport ab‐ stracted in some layer? • How do we route messages? Can we send the same message to multiple peers? Can we send replies back to an original requester?

MQ does not send the message (single or multipart) right away, but at some in‐ determinate later time. A multipart message must therefore fit in memory. • A single-part message must also fit in memory. If you want to send files of arbitrary sizes, you should break them into pieces and send each piece as separate single-part messages. • You must call zmq_msg_close() when finished with a message, in languages that don’t automatically destroy objects when a scope closes. And to be necessarily repetitive, do not use zmq_msg_init_data() yet.

In memory, ØMQ messages are zmq_msg_t structures (or classes, depending on your language). Here are the basic ground rules for using ØMQ messages in C: • You create and pass around zmq_msg_t objects, not blocks of data. • To read a message, you use zmq_msg_init() to create an empty message, and then you pass that to zmq_msg_recv(). • To write a message from new data, you use zmq_msg_init_size() to create a mes‐ sage and at the same time allocate a block of data of some size. You then fill that data using memcpy(), and pass the message to zmq_msg_send().

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