Mithril.js
reagent
Mithril.js | reagent | |
---|---|---|
50 | 41 | |
13,924 | 4,719 | |
0.7% | 0.1% | |
3.4 | 1.1 | |
29 days ago | 6 months ago | |
JavaScript | Clojure | |
MIT License | MIT License |
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Mithril.js
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Ask HN: I can no longer like React, do you?
I don’t enjoy React much, but (as I’ve commented before) I do love Mithril (https://mithril.js.org). Immediate-mode UI via a vDOM, like React, but small, simple, and with none of the reactivity complications. I’d never go back to building apps with pure JS.
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Mithril.js: A Modern Framework for JavaScript
You can find more information about Mithril.js on its official website.
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Ludic: New framework for Python with seamless Htmx support
The idea of nested function calls to build HTML is not new. Back in the hey-day of JS frameworks, this was a common vdom pattern. I kinda miss [MithrilJS](https://mithril.js.org/#dom-elements)
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No CMS? Writing Our Blog in React
I have mixed feelings about React. I like it better than jQuery, and better than other JS frameworks I’ve used.
But I much prefer Mithril (https://mithril.js.org/), which offers the same immediate-mode advantages (https://news.ycombinator.com/item?id=19746235) but without the crazy complex dependency-tracking reactivity.
I rather liked this comment on React: https://news.ycombinator.com/item?id=38640051
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VueJS turns 10 years old
Vue with Vite (the builder/runner) is a stable, open source option. It is really a lightweight start where you're mostly writing HTML with interpolated data, and Vue is updating values correctly and performantly. Just build your reactive HTML app in one file and break into separate components as you're feeling the spirit. https://vuejs.org/guide/quick-start
Mithril if you just want to drop in want a tiny, complete reactive library that doesn't require a build step--this one is most like what you might end up creating in a large jQuery app. You can understand everything from the homepage. https://mithril.js.org/
HTMX if you really like HTML conventions. This doesn't feel jQuery-like and depends on your approach to your server app. https://htmx.org/
- VanJS: A 0.9KB JavaScript UI framework
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HTMX for pages with heavy user interactivity
React is still has gratuitous complexity. If you need some React like, take a look at mithril which is simpler and much smaller.
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Lodash just declared issue bankruptcy and closed every issue and open PR
The submitter creating multiple var -> let PRs (one PR per file), was also doing this in other projects, and would've broken some of their users.
https://github.com/MithrilJS/mithril.js/pull/2880#pullreques...
And he created multiple PRs there too. And didn't follow their workflow...
- Produce HTML from S-Expressions
- Vanjs
reagent
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Ludic: New framework for Python with seamless Htmx support
Generating `HTML` from lisps has poisoned any other approach for me, see for example https://www.neilvandyke.org/racket/html-writing/, https://reagent-project.github.io/, and https://edicl.github.io/cl-who/
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Produce HTML from S-Expressions
Hiccup syntax for Clojure uses hash maps (curly braces) for attrs, e.g. `{:style {:background "red" :margin "1em"}`
See Reagent which uses Hiccup synta: https://reagent-project.github.io/
(defn simple-component []
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A History of Clojure (2020) [pdf]
* Single-Page App: shadow-cljs for the build concerns (https://github.com/thheller/shadow-cljs), Reagent with Re-frame for complex/large app (https://reagent-project.github.io and https://github.com/day8/re-frame). Even if we now prefer using HTMX (https://htmx.org) and server-side rendering (Hiccup way of manipulating HTML is just amazing, https://github.com/weavejester/hiccup).
- Leaving Clojure - Feedback for those that care
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Clojure is a product design tool
The API documentation lists the most commonly and rarely used parts before going into detail and there are many usage examples.
Reagent has a nice intro tutorial (classic todo-app): http://reagent-project.github.io and many other helpful tutorials and resources for beginners: https://cljdoc.org/d/reagent/reagent/1.2.0/doc/documentation...
However, since Reagent is still stuck with class-components for more complex behavior and relies on Hiccup, which is nice but has a performance cost compared to pure React, I am unsure about its future. Like some others in the Clojure community, I have moved to thin React wrappers like Helix and use Refx to integrate those with re-frame. It may be a bit confusing right now for beginners since there is no “golden path”.
Also, unfortunately, many smaller libraries are poorly documented and it seems like it is expected from the developer to dig into the source code to find out what’s going on.
What I found the most difficult as a beginner was how to setup a project in ClojureScript in the first place, like all the configuration in shadow-cljs, how it interacts with deps.edn, how it integrates with npm, the REPL, etc. But dev/build config has always been a weak spot for me, so it might be just that.
Overall, I still very much enjoy working with Clojure(Script), more than in any other language. Anyone who likes Lisps and functional programming should give it a try (and be sure to watch Rich Hickeys amazing talks!).
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Ask HN: How can a BE/infra developer handle the FE side of personal projects?
have you tried cljs and reagent? it’s a different vibe.
my bootstrap: https://github.com/nathants/aws-gocljs
the project: https://reagent-project.github.io/
- What are the enduring innovations of Lisp? (2022)
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Building a website like it's 1999... in 2022
Clojure people have been doing this for a decade or so. It’s really so much better to work with. All started with Hiccup and when React came along you got Reagent and many more developments building on the idea.
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React.dev
> But Reagent supports functional components as well, with hooks and all.
I addressed this already: while reagent is able to emit function components, there is a performance penalty to this.[1]
> I also very much like Hiccup, and so do many of us, because code is data and data is code, and Helix has decided not to support that.
Hiccup is convenient to write, but it is a constant run-time cost and a significant storage cost given that you have to store long series of constructors to cljs.core.PersistentVector in your bundle, have the JS runtime actually construct the vector, then pass it through a Hiccup interpreter to finally produce DOM nodes and throw away the persistent vector, only to repeat this entire process again on re-render.[2]
> Helix has decided not to support that.
That is simply not true. From the Helix documentation[2],
> If you want to use libraries like sablono, hicada or even hx hiccup parser, you can easily add that by creating a custom macro.
These are all Hiccup interpreters you can readily use.
IME there is very little difference between using the $ macro in Helix and writing Hiccup. I do not really miss Hiccup when I use Helix, and you still have data as code ;)
While this is from an unrelated project, there are benchmarks[3] done against Reagent that demonstrate the sheer overhead it has. In practice it is not a big problem if you rarely trigger a re-render, but otherwise it is a non-trivial cost, and if you want to use modern React features (like Suspense), there is a lot of r/as-element mingling going on, converting cases, etc. that simply make Reagent feel more tedious to use than Helix.
Also, the newer UIx2, which largely borrows from Helix, is "3.2x faster than Reagent" according to one of the contributors.[4]
I think it'd be worthwhile to benchmark all of these libraries against each other and record the data in one place. Maybe I'll get around to doing it this weekend :)
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[1] https://github.com/reagent-project/reagent/blob/master/doc/R...
[2] https://github.com/lilactown/helix/blob/master/docs/faq.md#w...
[3] https://github.com/roman01la/uix#benchmarks
[4] https://github.com/pitch-io/uix/pull/12
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React is a fractal of bad design
Reagent is peak React. All the good stuff without any of the hook and readability problems the article describes.
No affiliation, happy user for years.
https://github.com/reagent-project/reagent
What are some alternatives?
Alpine.js - A rugged, minimal framework for composing JavaScript behavior in your markup.
helix - A simple, easy to use library for React development in ClojureScript.
Preact - ⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.
re-frame - A ClojureScript framework for building user interfaces, leveraging React
riot - Simple and elegant component-based UI library
shadow-cljs - ClojureScript compilation made easy
inferno - :fire: An extremely fast, React-like JavaScript library for building modern user interfaces
fulcro-rad-demo - A demo for Fulcro RAD using either SQL or Datomic databases.
Vue.js - This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core
storybook.js-with-shadow-cljs
Aurelia 1 - The Aurelia 1 framework entry point, bringing together all the required sub-modules of Aurelia.
hyperscript - Create HyperText with JavaScript.