purescript-concur-react

Tangential, but some very cool things are happening in Purescript-land, especially when it comes to row types or UI research: * https://github.com/natefaubion/purescript-variant (open variant types) * https://github.com/natefaubion/purescript-run (extensible effects implementation based on purescript-variant) * https://github.com/ajnsit/purescript-concur (time-reifying UI framework, there's also a Haskell and a JS implementation of Concur) * https://github.com/arthurxavierx/purescript-comonad-ui-todos (comonadic UIs) * https://github.com/paf31/purescript-purview (incremental lambda calculus UI library, this is mind blowing!) * https://github.com/paf31/purescript-sdom (declarative diff-less UI library) There's also [0], a mature UI framework used in production at Slamdata. Lumi [1] are writing their frontend in Purescript. What I especiall

I wrote a UI framework called Concur which is very similar to immediate mode UIs and hence very easy to use, but also scales fantastically well to complex UIs. The original code was written in Haskell (https://github.com/ajnsit/concur), and then ported to Purescript (https://github.com/ajnsit/purescript-concur), and even Javascript (https://github.com/ajnsit/concur-js). There's an introduction/tutorial here - https://github.com/ajnsit/concur-documentation/blob/master/R...

Edit: I changed my response after I took the time to understand what you meant. Concur has a very uniform programming model where you do everything by composing widgets. `elm` is a widget. `render` also is a widget. As such both can perform arbitrary async effects, and they take place inside event handlers, or inside lifecycle methods like componentWillMount. Concur takes care of managing that for you. So to log all actions to the console, you can add a logging call to `elm`. elm render update = go where go st = do action <- render st liftEffect (log ("Action - " <> show action)) go (update st action) Meanwhile, the render function itself can be a widget which performs side effects - view = do evt <- button [onClick] [text "Click me"] liftEffect (log "Button was clicked") retu

Shameless plug - I'm trying to improve upon Elm and React's programming model with my Concur UI framework. Its programming model is a bit unusual, it uses Monads to sequence widgets in time, but it is designed to be extremely simple to use, and you don't need to actually understand Monads to use it. An advantage is that it's not artificially restricted like Elm, and allows you to use advanced Functional Programming tricks when you can and want to. It is available for [Haskell](https://github.com/ajnsit/concur), [Purescript](https://github.com/ajnsit/purescript-concur), and [Javascript](https://github.com/ajnsit/concur-js) (so no need to learn a new language), and also allows using external React components. The Javascript version uses Async Generators as a substitute for Monads. With Concur, you can implement the entirety of Elm architect