tooling
typescript
^ What you should be using.
node
Chrome's js engine + a local development library.
deno
A secure alternative to node with a proper standard library.
bun
A faster javascript runtime.
kiesel
A small WIP javascript runtime.
esbuild
An extremely fast JavaScript bundler.
https://www.npmjs.com/package/servor
Simple development webserver with live reload.
ava
A test runner.
language
json
js variables
js arrays
js strings
js looping
js type conversion
js objects
js functions
js classes
js maps
js symbols
js deepEqual
js dates
js bugs and errors
js eval
js asynchronous
dom
libraries
htmx
A simple and elegant way to write client-side code.
htmz
An even simpler, like 181 byte way of doing the above.
react-js
A slower and jankier way of building user interfaces!
https://github.com/zloirock/core-js
Very popular polyfill library.
https://momentjs.com/
Time and date library.
https://videojs.com/
Video player.
https://threejs.org/
3D Library.
https://codemirror.net/
Versatile but light weight text editor.
https://github.com/tinysearch/tinysearch
A really tiny, but useful client side search. You need to build up an index, but many static site generators like zola can do this.
https://www.fusejs.io/
Similar to the above, but slightly more heavyweight and featureful.
http://elasticlunr.com/
Another client side search, but with lots of nice features. Still reasonably small.