I love Elm before but now it is even better! I'll make the switch even though I was almost done with my first app with it.
A Farewell to FRP
11–20 of 246 posts
Re: A Farewell to FRP
#12This looks very cool. In ClojureScript, we have the re-frame pattern/framework, which is built on Reagent, which is a ClojureScript wrapper of React. re-frame is all about subscriptions, using a "big atom" to hold application state client-side. Seeing Elm implement the same subscription pattern makes it look pretty tempting. My understanding is that ClojureScript and Elm have some similarities - functional, pleasant…
Might be off topic but I was interested in the "a big atom". Reagent is using a big atom and some small atoms to simulate component state -- which breaks hot code swapping. And I tried a way to abstract out component states into a single atom to fix it by building my own React like library. Now it's "two big atoms" on my side.
Re: A Farewell to FRP
#13The chat client thing is pretty interesting, but there's this little bit:
> Use the browser API — To get started you just create a new web socket! Well, then you need to open the connection. But do not forget to add an onerror listener to detect when the connection goes down and try to reconnect with an exponential backoff strategy. And ......
How does handling errors happen I wonder. If you take FB messenger for example, you would queue up a message but if the sending failed you would get an opportunity to retry/not send it at all.
I suppose in FB's case you could write your own subscription provider...
Re: A Farewell to FRP
#14Does Elm have any nice interfaces for common JS frameworks? (like reagent / om in clojurescript, or angular2 for dart / typescript)
Elm doesn't really "need" interfaces to react/angular/whatever, the Elm Architecture defines a standard way to write a reactive application in pure Elm (in a style similar to react/redux).
Re: A Farewell to FRP
#15Congrats to Evan. I'm still learning Elm and it has been such a pleasure. It's so much clearer to understand the code and go back to it later.
I spoke with Evan at length at one of the regular Elm "hackathons" in SF and was so impressed how he thinks about long-term vision of Elm and prefers to take his time to ensure he gets it right to make Elm be around for a long while. Which is the reason I'm investing time into Elm.
If you're in SF Bay area. Tomorrow (Wed) is the next Hack night a great place to talk to Evan and the small community around it.
Re: A Farewell to FRP
#16Does Elm have any nice interfaces for common JS frameworks? (like reagent / om in clojurescript, or angular2 for dart / typescript)
Elm doesn't really "need" interfaces to react/angular/whatever, the Elm Architecture defines a standard way to write a reactive application in pure Elm (in a style similar to react/redux).
So Elm is only usable for new projects (or rewrites from scratch) and can't be "tried out" if you have some existing mess of a code and want to replace some especially ugly chunk of it (or write a new feature) - just to see how it goes?
Re: A Farewell to FRP
#17Earlier quoted context omitted.
Elm doesn't really "need" interfaces to react/angular/whatever, the Elm Architecture defines a standard way to write a reactive application in pure Elm (in a style similar to react/redux).
So Elm is only usable for new projects (or rewrites from scratch) and can't be "tried out" if you have some existing mess of a code and want to replace some especially ugly chunk of it (or write a new feature) - just to see how it goes?
No that's not true. Richard from NRI wrote a great blog post about just "trying out" elm in your React app.
http://tech.noredink.com/post/126978281075/walkthrough-intro...
Re: A Farewell to FRP
#18Does Elm have any nice interfaces for common JS frameworks? (like reagent / om in clojurescript, or angular2 for dart / typescript)
Ports were the way to do this in Elm. I don't know how it works in the new version.
Re: A Farewell to FRP
#19I haven't dabbled in Elm much, but subscriptions look a lot like ordinary JS event handlers:
Time.every second Tick
Time.on('everySecond', tick)
Re: A Farewell to FRP
#20Does Elm have any nice interfaces for common JS frameworks? (like reagent / om in clojurescript, or angular2 for dart / typescript)
Elm has JS interop via ports, which would allow you to mix or migrate towards elm.
https://evancz.gitbooks.io/an-introduction-to-elm/content/in...