Both Swift Testing and XCTest have simple mechanisms for controlling how long tests should be allowed to run before being considered a failure. This is critically important for con...

Swift’s task groups can be cancelled in one of three ways: if the parent task of the task group is cancelled, if you explicitly call cancelAll() on the group, or if one of your ...

If you want to read the return value from a Task directly, you should read its value using await, or use try await if it has a throwing operation...

When a thread pauses work on one actor to start work on another actor instead, we call it actor hopping, and it will happen any time one actor calls another.当线程暂停对一个 a...

Swift lets us attach metadata to a task using task-local values, which are small pieces of information that any code inside a task can read.Swift 允许我们使用 task-local ...

Using async/await in Swift allows us to write asynchronous code that is easy to read and understand, but by itself it doesn’t enable us to run anything concurrently – even w...

Swift’s Task struct has a static sleep() method that will cause the current task to be suspended for a set period of time. You need to call Task.sleep()&n...

Using async functions in Swift is done in two steps: declaring the function itself as being async, then calling that function using await.在 Swift 中使用异步函数分两步完...

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...

Concurrent Swift code often streams values over time rather than returning them all at once, so it's important to be able to write tests to check an AsyncStream, AsyncSeq...