Love passion projects, and love Clojure and its syntax, but wish some folks would pick up on Spec and on predicate-based data flow definitions. That is what I miss most in other languages.
"predicate-based data flow" is something I haven't heard before, what do you have in mind? I agree that clojure.spec2 can probably generate UI ... This gist is where Hyperfiddle DSL is roughly at right now but I think the Datomic schema definitions can be replaced by specs and the pull queries by s/select https://gist.github.com/dustingetz/96c928f755c736d2b525bb61a...
Spec has it's place, but I think people are trying to shovel spec in all sort of places; for example, heavy data parsing, making code very hard to track. Reminds me on core.logic movement couple of years ago, where everyone tried to have own parser/ui/whatever written in it, resulting very unreadable code.
What I'm really missing from spec is ability to disable it with flag or property, like "assert" macro. Sometimes I just want piece of code to run as fast as possible with less bytecode and instructions executed.
Thinking about Spec like a type-system is really not the right way to think. Its more dynamic validation system that works like regex for data-structures.
I'm not hugely into Python, so not sure about the details of virtualenv, but if you want to install packages fetched by jpm in a different directory, you can set `JANET_PATH` to where you want them to go.
So doing `export JANET_PATH=$pwd/packages` would put them into `./packages` from your current working directory.
I'm working on a project right now where the centerpiece is a Three.js scene. It's about data visualization, so the surrounding code covers much of the same ground as a typical single-page web app: fetching data, UI for manipulating the dataset, etc.
I decided not to use my beloved Clojure and re-frame because it seemed like I was going to end up wrestling with Three's imperative API.
Others inclined toward projects like the OP and the Clojure ecosystem more generally: how have you approached similar projects before? Where there's a very non-Clojure-native library that will be critical?
I ended up with TypeScript, React, and Redux instead of re-frame.
> how have you approached similar projects before? Where there's a very non-Clojure-native library that will be critical?
Started playing around with Arcadia which is Clojure-CLR + Unity3D tooling/library. Basically used for make some interactions with the Unity3D framework easier.
While most of the code is using interop, having the repl flow is something that for me, after using Clojure professionally for a while, is really really hard to give up. I've tried getting into game development before, but the slow iteration cycles on "make change -> save -> do thing to test" just sucks all the fun out of it.
If I were to use Three.js in a project, I'd approach it the same way. As I try to stay far away from any other languages, I'd write a small layer between my CLJS code and the Three.js API, the smaller the better, and then use that.
Because giving up on being able to eval whatever and having access to a repl is not worth it in the projects I work with.
Basically, any hurdle (like basing my project around a non-CLJS library) is easier to overcome than having to deal with something like TypeScript again.
Interesting. Anyone used Janet before? It sounds like a promising language. The fact that it supports mutable strings is a little disconcerting, though.
I haven't yet but I think I will, partly because I've always been intrigued by lisps. Also, I hope they never change their logo, which looks a lot like my late mother did when she was young. She was also named Janet.
Seems the inspiration for the name comes from The Good Place, and the logo seems different enough that they won't sue the owner of the project, as the face in the logo is not that similar to Janet from the TV show.
> Why Janet? Janet is named after the almost omniscient and friendly artificial being in The Good Place
Why is that a problem? Most of the data types have mutable and immutable variants. buffer -> string, table -> struct, array -> tuple. The mutable variants have a `@`.
It is not disconcerting. It is necessary if you want to perform string operations efficiently.
Java has String and StringBuilder for the same purpose.
Rust has str (always static, immutable) and String (can be mutable).
This is very common in non-scripting languages.
The major question is how Janet compares with clojurescript. A quick look it seems at least it is easier to setup. Anyone know how Janet cf with clojurescript.
There have been a couple of comments here asking a question like this, and it makes me realize that most people don’t actually know what clojurescript is.
Clojurescript is not some kind of scripting language on top of clojure, it is the clojure language that compiles to JavaScript, usually for running on the front end.
> it is the clojure language that compiles to JavaScript, usually for running on the front end.
Being super pedantic (probably unnecessarily), it's the Clojure syntax for a subset of the Clojure language, plus some additional syntax and functionality specific to JavaScript interop.
I'm skeptical of any framework that brings its own new syntax. That means an enormous additional overhead of documentation, support, and dev tool integration, which doesn't tend to go well without a critical mass of end-users.
What's weird to me about this one is that it's "with Clojure syntax" but isn't just a ClojureScript library? I guess the Lisp syntax makes the parsing step easy, at least.
The framework is not using its own syntax, it is the syntax of Janet. It has Clojure syntax because it's written in Janet which is a Clojure inspired Lisp.
You need to fix the syntax highlighting and code rendering on the landing. Use a monospaced font and a different background colour. Monokai is a good choice.
Any plans for auth? It is a weakness of a lot of web frameworks.
