To begin this discussion, let's first define the difference between hardware and software. What are the purposes of hardware and software? Avoid using the Respond button at the top of the discussion.
Swift 2 Apps in the App Store Swift 2 is ready for the world. You can now submit your apps that take advantage of the latest features in Swift 2 that make code more readable and powerful, including guard, the new error handling model, and availability controls. When running Xcode 7 you may notice a number of syntactical changes need to be applied to your Swift 1.
To help in your migration to Swift 2, Xcode 7 includes a helpful tool to re-write older Swift code for you. If your code is in the late stages of development and you must stay on Xcode 6 for a little while, you will need to continue to use OS X Yosemite as your development OS. Xcode 7 continues to make communication between Objective-C and Swift more natural by introducing a lightweight generics model for Objective-C.
Generics enable the two languages to safely understand and share collections containing specific kinds of elements. These features are useful for anyone writing apps that contain both Swift and Objective-C code.
To improve the experience of working with Swift and with Objective-C, we made a company-wide effort to provide this information in our SDK headers. This takes our Swift interface from this: The tool takes a project that uses Swift 1.
These changes account for the improved header information. For instance, if you are overriding a method whose parameter and result types are now more precise, the migrator will update your method to match.
Note that this video uses the Xcode 6. For more information on nullability annotations, see the blog post Nullability and Objective-C. Jul 23, Strings in Swift 2 Swift provides a performant, Unicode-compliant string implementation as part of its Standard Library.
In Swift 2, the String type no longer conforms to the CollectionType protocol, where String was previously a collection of Character values, similar to an array. Now, String provides a characters property that exposes a character collection view.
Although it may seem natural to model a string as a collection of characters, the String type behaves quite differently from collection types like Array, Set, or Dictionary.
This has always been true, but with the addition of protocol extensions to Swift 2 these differences made it necessary to make several fundamental changes. Different Than the Sum of Its Parts When you add an element to a collection, you expect that the collection will contain that element.
That is, when you append a value to an array, the array then contains that value. The same applies to a dictionary or a set. However, when you append a combining mark character to a string, the contents of the string itself change.
Consider the string cafe, which has four characters: Judged by the Contents of Its Characters Another difference between strings and collections is the way they determine equality.
Two arrays are equal only if both have the same count, and each pair of elements at corresponding indices are equal. Two sets are equal only if both have the same count, and each element contained in the first set is also contained in the second.
Two dictionaries are equal only if they have the same set of key, value pairs. However, String determines equality based on being canonically equivalent. Characters are canonically equivalent if they have the same linguistic meaning and appearance, even if they are composed from different Unicode scalars behind the scenes.
Consider the Korean writing system, which consists of 24 letters, or Jamo, representing individual consonants and vowels. When written out these letters are combined into characters for each syllable.
In Swift, strings are considered equal regardless of whether they are constructed from decomposed or precomposed character sequences: Depends on Your Point of View Strings are not collections.
But they do provide views that conform to CollectionType: The characters property segments the text into extended grapheme clusters, which are an approximation of user-perceived characters in this case: Because a string must iterate through each of its positions within the overall string each position is called a code point in order to determine character boundaries, accessing this property is executed in linear O n time.
The unicodeScalars property exposes the underlying scalar values stored in the string. Use this API when you are performing low-level manipulation of character data.
These values correspond to the actual bytes written to a file when translated to and from a particular encoding. This new version has even better performance, a new error handling API, and first-class support for availability checking.Investing in Apple Inc Geography Topics Review on the Effectiveness of Brand/Product Placement in Films and a Comparison Between Brand Placements in Hollywood and Bollywood Films.
Netw Case1 Apple Apple has been in the USA and world marketplace since and today it is one of the leaders in technology market in the USA and in the world. Some even say “ Apple is mostly Steven Jobs life rather than a company’s history “ During Apple’s history almost most of the time Steven Jobs name is associated with turning.
Editors note Since this case study was posted, two faculty members have also offered their insight to the BlackBerry situation.
Strategic Analysis of a Tech Giant Evan Hallward B Mgmt - . Best Answer: Since your network devices are all Apple, administer with AirPort Utility. If your base stations support it, and you are using the n only (5 GHz) radio mode, you can improve your network speed with an advanced setting.
Mar 04, · More ways to shop: Visit an Apple Store, call MY-APPLE, or find a reseller/5(50). How much of Apple’s success can be linked directly back to its culture? Why? How do the actions of Apple apply to the TCOs? Your Case should be pages, double-spaced, have APA references, and typed in an easy-to-read font in MS Word (other word processors are fine to use but save it .