Andrew Bancroft • 7/1/2015

Every Swift Value Type Should Be Equatable

This article discusses the recommendation from WWDC15 that every Swift value type should conform to the Equatable protocol. It explains the intuitive expectation that values can be compared for equality, using examples like Int and String. The article also details the three essential properties of equality—reflexive, symmetric, and transitive—and emphasizes the importance of implementing the == operator correctly to meet these mathematical standards. It is a technical guide for Swift developers on best practices for value types.

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#Protocols #Swift #Value Types