Hi, I installed this lib and added this in _config.yml:

uglify:
  mangle: true
  output:
  compress:
  exclude:
    - '*.min.js'

But the js files under themes are not compressed to public. What should I do?

I want to use Es6 but uglify2.x does not support.
Thanks.

Although for the best compatibility, most of the website are still write their js in es5. But for covering some cases, we might add es6 support for hexo-uglify.

Once we have uglify-es, but it is no longer maintained. Currently there is a continued version of uglify-es: terser.

We could bring up an option for choosing compressor.