如何在网络扩展中使用ECMAScript 6？

Question

I am trying to use ECMAScript 6 in my webextension in Chrome 51 (in my background.js code) but I get an error on the first import: "Unexpected token import". I enabled experimental javascript features in Chrome. Is there any information available anywhere about using ECMAScript6 in webextensions?

Answer 1

Firefox supports most parts of ES6 , but not modules . It's being worked on under bug 568953 .

Answer 2

Native support for ES6 modules is quite a thing. A common way to go is to have a build that bundles modules. rollup is commonly used for that.

I just created a skeleton for webExt add-ons that does this.