是否已经可以在 react-native 中使用顶级 await? [英] Is it already possible to use top-level await in react-native?

问题描述

是否已经可以在 react-native 中使用顶级 await?我看到它已被添加到 TypeScript 3.8(我没有使用 TS，我只是想看看它是否有帮助，但没有).然而，在 react-native 文件转换是由 babel 处理的，我认为当前的 Metro 预设无法处理顶级等待.有什么办法可以让它工作吗?

Is it already possible to use top-level await in react-native? I saw it's been added to TypeScript 3.8 (I was not using TS, I just tried to see if it would help but no). However in react-native file transform is handled by babel and I don't think the current metro preset handles top-level awaits. Is there any way to make it work?

推荐答案

ECMAScript 功能顶级 await 有两个条件:

ECMAScript feature top-level await stands on two conditions:

1. ES2017+
2. ECMAScript 原生模块(它们被编译为函数)

但是 React-Native 使用节点模块，所以答案是否.

But React-Native uses node modules, so the answer is no.

查看Ecma 国际标准了解更多

这篇关于是否已经可以在 react-native 中使用顶级 await?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！