swup VS Opal

https://swup.js.org/ single-page-app but with minimal framework, still along for the feel of an SPA

Sure, you can use any number of JS-avoidance libraries. I'm a fan of Turbo, and there's also htmx, Unpoly, Alpine, hyperscript, swup, barba.js, and probably others.

Swup is this nice page transition library I found recently : https://swup.js.org/

2. The newly released fragment-plugin [3] that provides a declarative API for dynamically replacing containers based on rules

I can now finally build websites that tick all three boxes:

1. Visually impressive, fun, and snappy by using swup's first-class support for animations[4], cache[5], and preload capacities[6], enhanced with fragment visits as seen on the demo site.

2. Accessible by being able to serve server-rendered semantic markup that will fully work even with JavaScript disabled (try it out on the demo site!). On top of that, swup's a11y plugin[7] will automatically announce page visits to assistive technologies and will focus the new `

` element after each visit.

3. Because now all I need for my fancy frontend is a bit of progressive JavaScript, I can choose whatever tool I like on the server, keeping complexity low and maintainability high. I can use SSGs like eleventy or Astro (the demo site is built using Astro!), I can use any CMS like WordPress or ProcessWire, or a framework like Laravel. And I don't have to maintain an additional node server for SSG!

And all it took was 20 years! ;)

[0] https://github.com/swup/swup

So what are View Transitions good for? In short, they allow adding animated page transitions. Although we already have several standard options to animate stuff on web pages (CSS Transitions, CSS Animations or the Web Animations API) and countless more options in particular JavaScript frameworks and libraries (Framer Motion for React, Vue Transitions, Svelte Transitions, Swup, Barba.js or Animate.css to name just a few), the web still lacks a generic, standards-based and easy-to-use solution to animate transitions between pages or during DOM updates. At least that’s what Google engineers say and I tend to agree with them.

Is https://turbo.hotwired.dev/ my replacement? Or Swup.js?

I've used https://swup.js.org/. Simple to setup with one of the built in/contributed themes, haven't tried building a custom theme however. Also has a lot of good plugins for eg. accessibility. I used it in combination with Astro so a static site with a separate html file for each page.

Like Gatsby or Next, Astro does not have any client side navigation. So each link click triggers a full page reload. Astro recommends to use Swup as mentioned here. Turbo is also another option though the team does not recommend it. I'm currently using Swup which I'll probably switch from or completely remove it as I have added TOC to MDX and clicking on a title is not redirecting the page to that particular section.

It's been a long time dream for me since about 2013 when I started getting deep into Ruby and Rails, to be able to write Ruby code for the frontend instead of JavaScript. I was a lover and adopter of CoffeeScript (which had it's flaws and imperfections), but that mostly got killed by ES6. I wrote some PoCs with Opal[1] that felt pretty good to write, but the overhead was rough (this was many years ago so things might be different now) and I never really felt like I didn't have to know about or care about the underlying javascript. I tend to discard leaky abstractions as I feel they often add more complexity than they were meant to cover in the first place.

Has anybody used this or Opal or anything else? What is the state of "write your frontend in Ruby" nowadays?

[1]: https://github.com/opal/opal

Every time I see a respectable project use a Code of Conduct I remind myself that, unfortunately, Caroline Ada won[1]

[1] https://github.com/opal/opal/issues/941

But we shouldn't overstate the difference: the JS and Ruby object models are actually similar in how dynamic both of them are. This makes Ruby-to-JS compilers like Opal easier to implement, according to an Opal maintainer.

This is an interview with the author of Opal, here's the project:

https://github.com/opal/opal

Not the OP, but from what I remember they would seek out every possible opportunity in every single possible open source community they could find and propose the CoC that they wrote. 0 contributions to the projects, with the exception of demanding that people implement incredibly verbose CoC's in their projects under the guise of "protecting the minorities contributing to the projects".

Most infamous instance is probably this one, in the Opal repo: https://github.com/opal/opal/issues/941

As well as this thread in the Ruby issue tracker that devolves into pure chaos with Ada refusing to actually participate in any of the valid points others bring up: https://bugs.ruby-lang.org/issues/12004

And I'm sure there's many other instances if you look around a bit.

My experience with ruby for front end web dev is via https://opalrb.com/

Here's an example of the creator of the most adopted CoC (the Contributor Covenant) trying to get an open source contributor removed from a project due to his political opinions expressed on Twitter which she didn't like and found offensive.

So ruby has a JS transpiler - opal - https://opalrb.com/

I tried using it a little bit but the reality is if you need JS to make your app more interactable it's really worth it to just learn some JS. As soon as you need something complex the extra layer of abstraction just gets in the way and becomes more of a headache, and if you don't need anything complex then you don't need JS in the first place.

I stumbled upon this thing from years ago. I did some more digging to see what other communities thought about it. Turns out that a lot of people are really against Coraline's side.