ccorcos / elmish

A Javascript UI library inspired by Elm

Elmish

This is functional programming pattern inspired by the Elm Architecture for building user interfaces.

To get it running:

git clone https://github.com/ccorcos/elmish.git
cd elmish
npm install
ln -s .. node_modules/elmish
node server.js
open http://localhost:3000/

Check out entry.js to select the example you want to run and work your way through the tutorial.

Goals

• Abstraction
  • It should be trivial to reuse UI components without rewriting them.
  • You should be able to create N instances of your app side-by-side without iframes.
  • Virtual DOM and data fetching requests ought to composable.
• Pure, Stateless, and Declarative
  • The UI should be a pure function of state.
  • There should be no side-effects tied to the render cycle.
  • Declare what your want, not how to do it.
  • No global variables.
• Serializable States and Actions
  • Trivial event tracking
  • Send states and actions to the server on any runtime exceptions.
  • Record user sessions and run predictive testing.
  • Time-travelling debugger.
  • Record and save flows to different corners of the app.
  • Generative testing by using the app.

elmish's Issues

What if we need to get reference to an element?

What would be the pattern for that?

(Good thing it's probably a lot simpler in elmish than in elm since it's just JS).

Library status

I've been reading over the tutorials and I really like the concept and its surface. I'm curious to know about the ability of using elmish as a library, as the repo seems to be in a state of instability. I looked through the branches and it seems that the mego branch has been going through some recent change.

Do you know what it would take in order to make this project user-ready?