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How to Learn Swift in 2021
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🧠Quiz yourself on Swift đź§
Question 1 of 16
Swift was introduced at __________'s 2014 Worldwide Developers Conference (WWDC).
Question 2 of 16
Swift was developed as a replacement for __________'s earlier programming language Objective-C, as Objective-C had been largely unchanged since the early 1980s and lacked modern language features.
Question 3 of 16
Swift works with __________'s Cocoa and Cocoa Touch frameworks, and a key aspect of Swift's design was the ability to interoperate with the huge body of existing Objective-C code developed for Apple products over the previous decades.
Question 4 of 16
Swift 4.0, released in __________, introduced several changes to some built-in classes and structures.
Question 5 of 16
Swift 5, released in __________, introduced a stable binary interface on Apple platforms, allowing the Swift runtime to be incorporated into Apple operating systems.
Question 6 of 16
Initially a proprietary language, version 2.2 was made open-source software under the Apache License 2.0 on __________, for Apple's platforms and Linux.
Question 7 of 16
Swift 5.1 was officially released in __________.
Question 8 of 16
It underwent an upgrade to version 1.2 during __________ and a more major upgrade to Swift 2 at WWDC 2015.
Question 9 of 16
Code written with previous versions of Swift can be updated using the migration functionality built into __________.
Question 10 of 16
__________ builds on the previous version of Swift 5 by extending the stable features of the language to compile-time with the introduction of module stability.
Question 11 of 16
In the first quarter of 2018 Swift surpassed __________ in measured popularity.
Question 12 of 16
Swift supports the concept of protocol extensibility, an extensibility system that can be applied to types, structs and classes, which __________ promotes as a real change in programming paradigms they term "protocol-oriented programming" (similar to traits).
Question 13 of 16
__________ intended Swift to support many core concepts associated with Objective-C, notably dynamic dispatch, widespread late binding, extensible programming and similar features, but in a "safer" way, making it easier to catch software bugs; Swift has features addressing some common programming errors like null pointer dereferencing and provides syntactic sugar to help avoid the pyramid of doom.
Question 14 of 16
It is source compatible with __________.
Question 15 of 16
It is built with the open source LLVM compiler framework and has been included in Xcode since __________, released in 2014.
Question 16 of 16
On Apple platforms, it uses the Objective-C runtime library which allows C, Objective-C, C++ and Swift code to run within __________.
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