From the course: Swift 5: Protocol-Oriented Programming

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Introducing the protocol

Introducing the protocol

From the course: Swift 5: Protocol-Oriented Programming

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Introducing the protocol

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- [Instructor] Protocols stand at the core of POP. They model abstraction by describing what the conforming types shall implement. Protocol names must begin with a capital letter. Apple has clear recommendations regarding protocol naming. Protocols that describe what something is should read as nouns. For example, collection, UITableViewDataSource, or UITextFieldDelegate. Protocols that describe a capability should be named using the suffixes able, ible, or ing. Such a Codable, CustomStringConvertible, and NSCoding. Let's get started exploring the protocol syntax. Open up Xcode and create a playground called protocols. Let's make it full screen and I'm going to remove the generated code except the import will need Foundation. All right, we declare a protocol called Taggable. I'm using the protocol keyword and let's call it Taggable. The protocol definition, that is the method and the calculated property requirements go…

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