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Video: Generics

Generic code enables you to write flexible, reusable functions and types that can work with any type, subject to requirements that you define. You can write code that avoids duplication and expresses its intent in a clear, abstracted manner.

Generics are one of the most powerful features of Swift, and much of the Swift standard library is built with generic code. In fact, you’ve been using generics throughout this Language Guide, even if you didn’t realize it. For example, Swift’s Array and Dictionary types are both generic collections. You can create an array that holds Int values, or an array that holds String values, or indeed an array for any other type that can be created in Swift. Similarly, you can create a dictionary to store values of any specified type, and there are no limitations on what that type can be.

This video was developed by Skip Wilson. You can follow him on Twitter (@SkipAllMighty).

Video: ProtocolsVideo: Closures II
Brian Coleman

Manager, Mobile Development at Rogers Communications with over 15 years of multifaceted experience including development, design, business analysis and project management working directly with clients in a consulting capacity throughout the full software life cycle.

July 5, 2014 Videosswift, tutorial, video
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Brian is a Lead iOS/tvOS Developer from Toronto with over 18 years of multifaceted experience including development, design, business analysis and project management.

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