read/write textareas

[joshuahhh]

rudimentary; just getting my feet wet!

inspired by Anil Dash's feature request.

demonstration: https://user-images.githubusercontent.com/643799/104154300-6be1e480-5399-11eb-8f3e-853a8c817f79.mp4.

the thought arose that this should really be done building off a general "dom tree as file tree" adapter, but actually: 1. there isn't anything like document.querySelectorAll for file trees, and 2. there's no particularly nice way to make one file tree a computed 'view' on another file tree. so that approach has some obstacles.

(btw: this PR is 99% just to share my exploration – no worries if it doesn't make sense to merge this!)

[jtagcat]

blog link is https://http.cat/404

also btw vsc has auto-save for more demo internet points

[osnr]

thanks! it seems to work -- I think #40 rears its head a bit here if you shorten the textarea content, and the ID thing would be nice to fix someday, but this is a good start