protocol

Specialized extensions using generic type constraints

Published 2021-10-22 renderable render func

How Swift’s generics system enables us to create specialized extensions that only apply to types that fit certain requirements, and how that capability can be r…

Combining protocols in Swift

Published 2022-02-10 encodable writetodisk diskwritable

Let’s take a look at various ways to combine multiple protocols into new functionality, either by using protocol extensions, composition, or by defining dedicat…

Using the ‘some’ and ‘any’ keywords to reference generic protocols in Swift 5.7

Published 2022-06-09 contentitem bookmarkscontroller func

How Swift 5.7 makes generic protocols more powerful and easier to work with, thanks to the ‘some’ and ‘any’ keywords.

Swift protocols and the main actor

Published 2026-08-01 uiview errorpresenter mainactor

How the main actor relates to Swift protocols, and what the practical differences are between isolating an entire protocol to the main actor, versus only markin…

Why HTTP/3 uses UDP protocol under QUIC instead of TCP?

Published 2023-03-08 retransmission packets latency

HTTP/3's use of UDP provides several advantages over TCP, including faster connections, better performance on high-latency networks, and improved security.