twostraws/whats-new-in-swift-4-2

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twostraws/whats-new-in-swift-4-2

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An Xcode playground that demonstrates the new features introduced in Swift 4.2.

What’s new in Swift 4.2?

This is an Xcode playground that demonstrates the new features introduced in Swift 4.2:

Derived collections of enum cases
Warning and error diagnostic directives
Dynamic member look up
Enhanced conditional conformances
Random number generation and shuffling
Simpler, more secure hashing
Checking sequence elements match a condition
In-place collection element removal
Boolean toggling

This is designed to complement my existing article What’s New in Swift 4.2. You might also want to check out What's New in Swift 4.1 and its accompanying playground. Alternatively, I have a whole website dedicated to tracking what's new in Swift – you should check it out at https://www.whatsnewinswift.com.

If you hit problems or have questions, you're welcome to tweet me @twostraws or email [email protected].

Note: Until a version of Xcode ships with Swift 4.2, you should download the latest Swift trunk development snapshot and activate it inside your current Xcode version.

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