Support more export forms

[thekip]

According to the docs njs expect functions to be exported in the following form

export default {
  myFn1,
  myFn2
}

It also stated that njs support only subset of js syntax. This is fine.

However, when it comes to bundling few files into one all modern bundlers such as esbuild and rollup will transform this export construction to something similar to this:

var filename_default = {
  myFn1,
  myFn2
};

export {
  filename_default as default
};

And that exact construction is not supported by njs. Unfortunately, there are no way to tune how these bundlers will output the code, hence this incompatibility make using modern bundlers completely impossible.

Browserify mentioned in the docs is dead. Last publish on npm was 2 years ago. Actually, i thought it was deprecated and abandoned in favor of webpack back in 2015, so it's not a viable solution for 2023.

The proposal is to add support this exact notation to unblock usage njs with modern bundlers such as esbuild / rollup

[thekip]

Related discussion in rollup repo rollup/rollup#4182 (comment)