[dcons] "Unexpected token"

[loganpowell]

Hi @postspectacular, back again with another ... question?

./node_modules/@thi.ng/dcons/dcons.js 558:22
Module parse failed: Unexpected token (558:22)
File was processed with these loaders:
 * ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
|     if (this._length < 2) return this;
|
>     for (iter = iter ?? Math.ceil(1.5 * Math.log2(this._length)); iter > 0; iter--) {
|       let cell = this.head;
|

Any ideas?

[loganpowell]

btw, you were right about the brittleness of the edge tooling...

[postspectacular]

Fixed and released! (v3.0.7) What tooling are you using? This package is a dependency of quite a few other umbrella packages and I've not come across this issue (though myself am only using snowpack for browser or otherwise nodejs 16.11/17.0.1)

A global search shows that this was the only instance of using this new Ecmascript operator, so hopefully no other similar surprises... 😉

[loganpowell]

It's a create-react-app toolchain. There are a number of issues with the support of various es features. What specifically about the code above is edgy?

Edit: ah, I see, nullish coalescing. I'm also sticking with Node 14 until AWS supports a higher version.