[RFC]: Template class object binding

[pmdartus]

This proposal aims to improve the Developer Experience (DX) around managing components with complex styles by enabling developers to describe the classes applied to an element using JavaScript objects.

Rendered

POC branch: https://github.com/salesforce/lwc/tree/pmdartus/class-shorthand

[abdulsattar]

It's a great little utility!

[ravijayaramappa]

Overall, its a very intuitive improvement.

[caridy]

I don't have a strong opinion about this particular proposal. I do remember we looked at something like this in the past, and we kinda decided not to pursue it, don't remember the details from back then.

Now, if all goes well, we favor local selectors without the need for classes, in fact the new SDS architecture doesn't use classes anymore, so I expect this to be a less of a problem in the future.