lion VS proposal-record-tuple

You wanna have look at lion

Like this? https://github.com/ing-bank/lion/

I've been maintaining a web component library with Lit for a while. Web components overall don't feel ready for primetime. Just making a custom input field and have it work with a is chore.

Just look here at how much overall code is needed to do it right: https://github.com/ing-bank/lion/blob/master/packages/input/...

After you get through all the inheritance and mixins it's thousands of lines

Essentially every element that doesn’t already exist in html is now able to be created as a custom element. Or to better utilise modern features of JavaScript existing elements are augmented. For example the white labelled Lion Elements by ING or Shoelace. These would make an excellent start to the web / web application section of a fully developed design system.

Lion (ING)

42. Lion Web Components

relevant issue, which is at the crux of this problem: https://github.com/tc39/proposal-record-tuple/issues/387

There are still so many basic things that aren't in the JS stdlib, though. A good example is Map - if you need to use a tuple of two values as a key, you're SOL because there's no way to customize key comparisons. Hopefully we'll get https://tc39.es/proposal-record-tuple/ eventually, but meanwhile languages ranging from C++ to Java to Python have had some sensible way to do this for over 20 years now.

If you’re reaching for structuredClone, what you really want is native immutable Record and Tuple syntax, and the companion “deep path properties” syntax which allows for efficient and ergonomic immutable updates:

- https://github.com/tc39/proposal-record-tuple

It will be called "record" in JavaScript which will swing the popularity back the other way I guess (currently a language proposal)

I suspect considering the strong desire to maintain consistency with JavaScript, we will eventually see something that when the Record proposal passes through tc39

I hope the Record and Tuple proposal makes it through

I mean, I'd love some real immutable/persistent data structures in JS by default, or even some Immer-like syntax sugar. Something like the record/tuple proposal would be awesome.

This will become very useful once Records and Tuples are a thing, because it allows you to store object references in a record/tuple (which by definition can only contain primitives).

Record and tuple is at stage 2

Also, js has an ongoing immutable value data types proposal.