[specialist]

Gorgeous book. You have great typographic esthetic. I like your writing voice. Thank you for sharing.

FWIW:

I skimmed to see, but did not find, if you specify the target JavaScript version and coding style.

I can't keep up with the rapid change in JS Universe. And I have absolutely no opinions. I just want someone to declare their preferred idiom and stick to it. House rules for objectness, for error handling, for concurrency, for modules, and so forth.

So a project would declare "ES2015, Eloquent JavaScript 3rd Edition, eslint w/ Twitter rules 2018-09-01".

Thanks for listening.