Swift Concurrency by Example 第5页
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How to create and use AsyncStreams to return buffered data 如何创建和使用 AsyncStreams 返回缓冲数据
AsyncStream and AsyncThrowingStream can be thought of a bit like continuations that can send back multiple values, but also like an AsyncSequence that is a...
5个月前How to convert an AsyncSequence into a Sequence 如何将 AsyncSequence 转换为 Sequence
Swift does not provide a built-in way of converting an AsyncSequence into a regular Sequence, but often you’ll want to make this conversion yourself so you don’t n...
5个月前How to create a custom AsyncSequence 如何创建自定义 AsyncSequence
There are only three differences between creating an AsyncSequence and creating a regular Sequence, none of which are complicated.创建 AsyncSequence 和创建...
5个月前How to manipulate an AsyncSequence using map(), filter(), and more 如何使用 map()、filter() 等作 AsyncSequence
AsyncSequence has implementations of many of the same methods that come with Sequence, but how they operate varies: some return a single value that fulfills you...
5个月前How to loop over an AsyncSequence using for await 如何使用 for await 遍历 AsyncSequence
You can loop over an AsyncSequence using Swift’s regular loop types, for, while, and repeat, but whenever you read a value from the async sequence you mus...
5个月前What’s the difference between Sequence, AsyncSequence, and AsyncStream? Sequence、AsyncSequence 和 AsyncStream 之间有什么区别？
Swift provides several ways of receiving a potentially endless flow of data, allowing us to read values one by one, or loop over them using for, while, or similar.Swift ...
5个月前
How to fix the error “async call in a function that does not support concurrency” 如何修复错误 “async call in a function that does not support concurrency”
This error occurs when you’ve tried to call an async function from a synchronous function, which is not allowed in Swift – asynchronous functions must be able to suspend the...
5个月前How to store continuations to be resumed later 如何存储要稍后恢复的 continuations
Many of Apple’s frameworks report back success or failure using multiple different delegate callback methods rather than completion handlers, which means a simple continuation won...
5个月前How to create continuations that can throw errors 如何创建可以抛出错误的continuations
Swift provides withCheckedContinuation() and withUnsafeContinuation() to let us create continuations that can’t throw errors, but if the API you’re using ...
5个月前What is an asynchronous function?什么是异步函数？
Although Swift functions are synchronous by default, we can make them asynchronous by adding one keyword: async. Inside asynchronous functions, we can call other asy...
5个月前