如何将 ECMAScript 12 转换为 ECMAScript 10

Question

我写了一个 JS 文件，其中的一些代码在 ECMAScript 12 中。问题是我所有的设备都只支持 ECMAScript 10。这是文件Javascript有没有可用的在线转换器，或者我如何手动完成？

Answer 1

You're looking for Babel .

Babel will basically let you write modern JS code and then it can transpile it to "more primitive" code in order to run on a larger set of devices.

There are a bunch of options and a bunch of ways you can go about using it, but using the env preset and specifying your targets is probably a good place to start.