Zelkova – Elm-style FRP for Clojure and ClojureScript (opens in new tab)

(github.com)

58 pointsgaalze11y ago18 comments

18 comments

gaalzeOP11y ago

There's also Javelin: https://github.com/tailrecursion/javelin

which à la 'Simpsons already did it' rule:

http://www.cliki.net/cells

It reminds me core.async's presentation, where Rich Hickey said something like "we thought Go's take on CSP was great, so we just added it to Clojure as a library". Blew my mind away, like Zelkova.

seanmcdirmid11y ago

FRP is a library in Haskell. Nothing to blow minds about.

blubbi211y ago

Sorry to be that guy, but are there any apps in production based on FRP/ Elm?

According to the Elm website, under "big projects" it lists the Elm website itself and a couple of rather PoC games. - http://elm-lang.org/Examples.elm

(I'm not saying that FRP is bad, I think it's an interesting concept, but I'm wondering on how efficient it is in production.)

jamesmacaulay11y ago

I think people are still figuring out the best ways of structuring large applications in Elm. See for example this discussion on routing from earlier this year:

https://groups.google.com/d/msg/elm-discuss/Hdpn3x0554c/3aFt...

Elm is still young but Evan is doing a great job of pushing the language forward.

If by "efficiency" you meant performance, then this is a good page to read:

http://elm-lang.org/blog/Blazing-Fast-Html.elm

seddona11y ago

We use Elm in production. See the symbol / footprint diagrams on this page https://circuithub.com/projects/electricimp/janice

grayrest11y ago

Not sure about Elm, but there are businesses using Microsoft's Reactive Extensions. I know Netflix had a series of blog posts on their use of RxJava and I believe they use RxJS as well.

[1] http://techblog.netflix.com/2013/02/rxjava-netflix-api.html

seanmcdirmid11y ago

Rx isn't FRP.

1 more reply

a-saleh11y ago

Not sure about production use, but I know that Elm is bound to be used at Prezi, where Evan Czaplicky works, if I remember correctly.

gaalzeOP11y ago

Anyone got an opinion?

gaalzeOP11y ago

I thought this was interesting:

~/src/elm-package$ cloc . => 2399

~/src/zelkova$ cloc . => 392

---

Also here are two demos:

#1. Mario!

http://jamesmacaulay.github.io/zelkova/examples/mario/

https://github.com/jamesmacaulay/zelkova/blob/gh-pages/examp...

#2. Dragging boxes

http://jamesmacaulay.github.io/zelkova/examples/drag-and-dro...

https://github.com/jamesmacaulay/zelkova/blob/gh-pages/examp...

sbensu11y ago

Are you the author? It looks amazing. I'm going to spend the weekend trying it out. Great Work!!!

gaalzeOP11y ago

I'm certainly not the author, I'm just desperate to see more people working on something to compete with Elm! I've just never been a fan of Haskell syntax :(

3 more replies

jamesmacaulay11y ago

Hi, thanks and have fun :) Ping me on twitter (@jamesmacaulay) or create a GitHub issue if you run into trouble.

j / k navigate · click thread line to collapse

18 comments

gaalzeOP11y ago

There's also Javelin: https://github.com/tailrecursion/javelin

which à la 'Simpsons already did it' rule:

http://www.cliki.net/cells

sbensu11y ago

It reminds me core.async's presentation, where Rich Hickey said something like "we thought Go's take on CSP was great, so we just added it to Clojure as a library". Blew my mind away, like Zelkova.

seanmcdirmid11y ago

FRP is a library in Haskell. Nothing to blow minds about.

blubbi211y ago

Sorry to be that guy, but are there any apps in production based on FRP/ Elm?

According to the Elm website, under "big projects" it lists the Elm website itself and a couple of rather PoC games. - http://elm-lang.org/Examples.elm

(I'm not saying that FRP is bad, I think it's an interesting concept, but I'm wondering on how efficient it is in production.)

jamesmacaulay11y ago

I think people are still figuring out the best ways of structuring large applications in Elm. See for example this discussion on routing from earlier this year:

https://groups.google.com/d/msg/elm-discuss/Hdpn3x0554c/3aFt...

Elm is still young but Evan is doing a great job of pushing the language forward.

If by "efficiency" you meant performance, then this is a good page to read:

http://elm-lang.org/blog/Blazing-Fast-Html.elm

seddona11y ago

We use Elm in production. See the symbol / footprint diagrams on this page https://circuithub.com/projects/electricimp/janice

grayrest11y ago

Not sure about Elm, but there are businesses using Microsoft's Reactive Extensions. I know Netflix had a series of blog posts on their use of RxJava and I believe they use RxJS as well.

[1] http://techblog.netflix.com/2013/02/rxjava-netflix-api.html

seanmcdirmid11y ago

Rx isn't FRP.

1 more reply

a-saleh11y ago

Not sure about production use, but I know that Elm is bound to be used at Prezi, where Evan Czaplicky works, if I remember correctly.

gaalzeOP11y ago

Anyone got an opinion?

gaalzeOP11y ago

I thought this was interesting:

~/src/elm-package$ cloc . => 2399

~/src/zelkova$ cloc . => 392

---

Also here are two demos:

#1. Mario!

http://jamesmacaulay.github.io/zelkova/examples/mario/

https://github.com/jamesmacaulay/zelkova/blob/gh-pages/examp...

#2. Dragging boxes

http://jamesmacaulay.github.io/zelkova/examples/drag-and-dro...

https://github.com/jamesmacaulay/zelkova/blob/gh-pages/examp...

sbensu11y ago

Are you the author? It looks amazing. I'm going to spend the weekend trying it out. Great Work!!!

gaalzeOP11y ago

I'm certainly not the author, I'm just desperate to see more people working on something to compete with Elm! I've just never been a fan of Haskell syntax :(

3 more replies

jamesmacaulay11y ago

Hi, thanks and have fun :) Ping me on twitter (@jamesmacaulay) or create a GitHub issue if you run into trouble.

j / k navigate · click thread line to collapse