在没有异步包装的情况下在chrome控制台中等待工作 [英] await work in chrome console without async wrapper

问题描述

我已阅读MDN的定义，它是: "await运算符用于等待Promise.它只能在异步函数中使用."
在编辑器中工作.但是在Chrome控制台中 我编写了一个异步函数，然后在全局执行中键入了一个waitFunctionName，它可以完美运行而无需异步函数包装， edit:Chrome的控制台仅支持该函数吗?

I've read the MDN definition for await which is : "The await operator is used to wait for a Promise. It can only be used inside an async function."
which works in the editor. However in the chrome console I wrote an async function then in the global execution I typed await functionName and that works perfectly without needing to the async function wrapper, edit: is that supported in the chrome's console just ?

const asyncGreeting = async () => 'Greeting' 

然后在全局执行中

await asyncGreeting()

结果是问候"

推荐答案

顶级await 是ECMAScript的拟议补充.

Top-level await is a proposed addition to ECMAScript.

Chrome 为此添加了支持开发工具.

Chrome added support for it to the dev tools.

因此，您可以在测试中看到它的作用.

Hence you can see it working in your test.

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