Another thing I don’t like: our asset behavior is decoupled from the assets. If you’re mucking around in your app/assets folder, then you have to first know that such a config exists, and then hunt it down in a totally different config folder. It would be nice if, while we’re working in asset land, we didn’t have to mentally jump around.

Keep your patches colocated with the code that depends on them.

in which business logic (JavaScript) is collocated with styles (CSS) and markup (HTML-like templating syntax).

A resource route maps a number of related requests to actions in a single controller.

In some cases, I could also create a component without any <script> tag at all. So in that way, I could actually bulk up the logic in one place if I could get some help from the #with block.

Separately, I wondered about having a central registry of warnings, since they're a bit scattered around at the moment. That way, we could check that someone wasn't trying to ignore a non-existent warning.

I'm also persuaded by the arguments that it will be easier to track stuff down by co-location.

I also think this would be great in terms of colocation. If I need some intermediate result I no longer have to jump between script and markup.

I'm persuaded that co-locating just this one type of logic will be useful.

I like this, mostly because it allows me to write small components without creating another separate sub-component for holding the value simple computation. I get annoyed every time I need to create a component just to hold a variable, or even move the computation away from the relevant location. It reminds me of the days where variables in C had to be declared at the top of the function.

When I say that my experience is that it means it's time to split up your components, I guess I mean that there tends to be a logical grouping between all the things that care about (for example) sqr_n, and in Svelte, logical groupings are expressed as components.

Because of that, it's easy to end up in a situation where the styles for a given piece of markup are defined far away (in terms of number of lines) from the markup itself, which reduces the advantage of having styles and markup co-located in the first place.

Keeping the CSS with the HTML for organization may have value however.