malli
shadow-cljs
malli | shadow-cljs | |
---|---|---|
33 | 20 | |
1,416 | 2,202 | |
0.6% | - | |
9.3 | 9.1 | |
10 days ago | 10 days ago | |
Clojure | Clojure | |
Eclipse Public License 2.0 | Eclipse Public License 1.0 |
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malli
- A History of Clojure (2020) [pdf]
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Critique of Lazy Sequences in Clojure
Clojure's lazy sequences by default are wonderful ergonomically, but it provides many ways to use strict evaluation if you want to. They aren't really a hassle either. I've been doing Clojure for the last few years and have a few grievances, but overall it's the most coherent, well thought out language I've used and I can't recommend it enough.
There is the issue of startup time with the JVM, but you can also do AOT compilation now so that really isn't a problem. Here are some other cool projects to look at if you're interested:
Malli: https://github.com/metosin/malli
Babashka: https://github.com/babashka/babashka
Clerk: https://github.com/nextjournal/clerk
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[ANN] Malli 0.11.0 is out - a data-driven data specification library for Clojure/Script
BREAKING: walking a :schema passes children instead of [id] to the walker function #884
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Generic functions, a newbie question
When you get to larger, more complex validations, I'd recommend checking out Malli or Spec.
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Any resources for "current best practices and learnings?"
for specs, you can try malli - feels pretty well supported and full featured: https://github.com/metosin/malli (i'm not 100% sure how popular it is for others, but I use it on my personal projects)
- Single-file scripts that download their dependencies
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Clojure Turns 15 round table video
Have you tried malli: Data-driven Schemas for Clojure/Script?
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Clojure from a Schemer's perspective
All that being said, I particularly use malli and I don't find anything to complain about. There is a very nice and sound ecosystem being built around it (malli-ts is one of my contributions to it, but still in early development stages). I highly recommend reading its README, very informative stuff.
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Clojure 15th Anniversary: A Retrospective
Any large codebase can be broken up into small isolated components that can be reasoned about independently. This is how you structure Clojure projects if you want them to be maintainable. Clojure inherently encourages doing this by defaulting to immutability. The contract between components is the data being passed to the component and returned by it. Using Malli schemas at the edges of the components is a typical approach to documenting their APIs https://github.com/metosin/malli
I see the fact that people often end up creating large and tightly coupled monolithic codebases in static languages as a negative aspect of static typing. Such codebases are difficult to reason about even if you have guarantees that the types align. Ultimately, you need to understand the relationships in code, and how they relate to business logic. The more coupling an application has the harder it becomes to reason about it as a whole.
Ideally, I think applications should be structured as a bunch of Lego blocks that can be composed together. Each component should encapsulate some functionality, and then the flow of the business logic should bubble up to the top and expressed in how these components are chained together.
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Worrying comment from HN on Building a Startup on Clojure
Uhhh spec has existed for a long time and before that, schema Nowadays we also have the excellent malli. If his codebase is full of functions where the shape of the data isn’t obvious, isn’t documented and isn’t specified in a specific/schema, that’s on him and his bad coding practices and really no different from passing data in other dynamic languages. A class by itself (without additional effort) only gives you field names.
shadow-cljs
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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).
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Supercharge Your JS/TS Project with ClojureScript REPL
Now, add shadow-cljs.
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[ANN] Malli 0.11.0 is out - a data-driven data specification library for Clojure/Script
Work with latest shadow-cljs (& closure compiler) #890
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Cherry: ClojureScript to ES6 Module Compiler
You can already develop with ClojureScript on the back-end. A popular ClojureScript compiler, Shadow-CLJS (https://github.com/thheller/shadow-cljs) has a target for Node among many others.
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Why metabase and circle are not using cljs (mostly)?
Hi, I'm looking at Clojurescript again after not having paid attention to it after several years. Are you saying that shadow-cljs does something to deal with the, "I have no idea if this library I want to use works with the Google Closure compiler," problem? If so, what? I'd really like to know.
- Clojure needs a Rails, but not for the reason you think
- shadow.css - CSS-in-CLJS
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Rich Hickey – open-source is Not About You
I don't know, the community in general tend to use macros that are well written. I keep seeing core.async being used (`go`) in Clojure projects, and also various macros for writing HTTP servers (compojure being a popular one which main code interface is a macro `defroutes`).
ClojureScript projects also routinely add support for making asynchronous code look synchronous (like `async/await` in vanilla JavaScript) via macros. shadow-cljs's `js-await` being one of the well-written ones: https://github.com/thheller/shadow-cljs/blob/49fb078b834e64f...
Usage:
(defn my-async-fn [foo]
- Finalmente, depois de dois aninhos no ventre, minha empresa nasceu 👶🚀
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ClojureDocs – Community-powered documentation and examples for Clojure
Unclear what "rendering a webpage" entails exactly.
If you want to do frontend development, you can give shadow-cljs a try, the quickstart is pretty quick: https://github.com/thheller/shadow-cljs#quick-start
If you want to just render server-side HTML, something like compojure (HTTP routing) and hiccup (Clojure data -> HTML) is pretty easy and quick to get started with (https://gist.github.com/zehnpaard/2071c3f55ed319aa8528d54d90...).
If you want to generate HTML files to serve with nginx/whatever, you can just use hiccup and `(spit)` the resulting HTML to files on disk.
What are some alternatives?
clojure - The Clojure programming language
helix - A simple, easy to use library for React development in ClojureScript.
schema - Clojure(Script) library for declarative data description and validation
reagent - A minimalistic ClojureScript interface to React.js
babashka - Native, fast starting Clojure interpreter for scripting
biff - A Clojure web framework for solo developers.
reitit - A fast data-driven routing library for Clojure/Script
storybook - Storybook is a frontend workshop for building UI components and pages in isolation. Made for UI development, testing, and documentation.
honeysql - Turn Clojure data structures into SQL
re-frame - A ClojureScript framework for building user interfaces, leveraging React
fulcro - A library for development of single-page full-stack web applications in clj/cljs
mkcert - A simple zero-config tool to make locally trusted development certificates with any names you'd like.