Code used during the talk: https://github.com/shashi/fuconf-talk
Slides: https://docs.google.com/presentation/d/16Xfqd-xU8y2JEN0TIcacDoYnp0b5-W7ESDB5v1SmcXs/edit#slide=id.p

 

Elm is a strongly typed functional reactive programming (FRP) language that compiles to HTML, CSS, and Javascript. In Elm, the Signal type represents a time-varying value--things like mouse position, keys pressed, current time are signals. With Signals, one can write terse code that is isomorphic to a dataflow diagram of the app. The code hence feels natural and is 100% callback free. All this, with powerful type inference.

This talk is an introduction to FRP. It explores functionally composing graphics and UIs, and creating interactions and animations with the Signal type. There will also be an overview of Elm’s execution mechanism and the time traveling debugger: a consequence of Elm's purely functional approach.

While instructive, it will be good fun too, in the spirit of Elm.

 
 

Outline/structure of the Session

Learning Outcome

  • Learn about Functional Reactive programming: a promising frontier in interactive UI design.
  • Learn about composing functional layouts, and collages (without ever using the term monoid).

Target Audience

Anyone interested, beginners and FP old timers alike

Requirements

You can try out Elm with a laptop and a decent internet connection. This is optional.

schedule Submitted 2 years ago

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  • Naresh Jain
    By Naresh Jain  ~  2 years ago
    reply Reply

    This looks like a great proposals. I'm wondering if you could structure it as a mini-tutorial, so that the interested participants could actually try the sample programs along side, as you demo them? If yes, then would request you to please update the proposal accordingly.

    • Shashi Gowda
      By Shashi Gowda  ~  2 years ago
      reply Reply

      Thanks! I guess what I could do is, have a page with links to live examples that can be edited in-browser. This way I can save some time and also have a good amount of content.

  • Swanand Pagnis
    By Swanand Pagnis  ~  2 years ago
    reply Reply

    Nice, looking forward to this. Elm has been on my radar for some time.


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