Book Image

Swift 5 New Features [Video]

By : Dee Aliyu Odumosu
Book Image

Swift 5 New Features [Video]

By: Dee Aliyu Odumosu

Overview of this book

<p>If you are already a Swift programmer, this course will get you up-to-date with all the new features in Swift 5 to improve your productivity and efficiency. </p><p>You will become fully acquainted with the new String ergonomics and improvements to the current Swift Standard Library, and discover some new examples of syntactical sugar that will let you write shorter but more powerful code. You will learn about the new result type for handling errors, thereby making your code more robust. Finally, you will learn how to migrate to Swift 5 as easily as possible. </p><p>By the end of the course, you will have gained up-to-date insights into all of Swift 5's features and will be able to code efficiently and rapidly within your projects. </p><p>The code bundle is available at: https://github.com/PacktPublishing/-Swift-5-New-Features</p>
Table of Contents (6 chapters)
Chapter 3
Collection and Range
Content Locked
Section 1
DictionaryLiteral Renamed
DictionaryLiteral object are lightweight key value pairs that look exactly like a dictionary, and behave like a dictionary, but with two major differences. The first one being that it is possible to have a duplicate key in a dictionary literal. The second major difference is that the values inside of a dictionary literal object are ordered. These two differences mean that it is not right to think of dictionary literal as a dictionary, since dictionary does not allow duplicate keys and values are not ordered.