javascript异步
JavaScript async/await has changed the landscape of how we code. We're no longer stuck in callback or then hell, and our code can feel more "top down" again.
JavaScript异步/等待改变了我们编码方式的面貌。 我们不再停留在回调或then地狱，我们的代码可以感受到更多的“自上而下”的一次。
Async functions require the following syntax:
异步函数需要以下语法：
async function myFunction() { }To use await with a function, the function needs to be declared with async. That got me to thinking: is it possible to detect if a function is asynchronous?
要将await与函数一起使用，必须使用async声明函数。 这让我开始思考：是否可以检测一个函数是否异步？
To detect if a function is asynchronous, use the function's constructor.name property:
要检测函数是否异步，请使用函数的constructor.name属性：
const isAsync = myFunction.constructor.name === "AsyncFunction";If the value is AsyncFunction, you know the function is async!
如果该值为AsyncFunction ，则AsyncFunction该函数为async ！
Async functions are my preferred method of working with promises. Knowing if a function is async could be useful as a library creator or a typing/validation utility.
异步函数是我处理诺言的首选方法。 知道某个函数是否异步对于作为库创建者或键入/验证实用程序很有用。
翻译自: https://davidwalsh.name/javascript-detect-async-function
javascript异步
