| Firebase = require "firebase" | |
| Immutable = require "immutable" | |
| { EventEmitter } = require "events" | |
| # Recursively listens to Firebase ref for modifications and emits "add", | |
| # "change", and "remove" events with a path and value (except for "remove") | |
| class FirebaseEventEmitter extends EventEmitter | |
| constructor: (url) -> | |
| EventEmitter.call(@) |
| // Event capturing for Mithril.js | |
| // Demo here: http://jsfiddle.net/barney/vsw8r3Lh/ | |
| m.capture = function capturingEventHandler( eventName, handler ){ | |
| function bindCapturingHandler( element ){ | |
| element.addEventListener( eventName, handler, true ); | |
| } | |
| return function config( element, init ){ | |
| if( !init ) bindCapturingHandler( element ); | |
| }; |
FRP to me means building your app by transforming values over time, from the input to the current state to the display.
This implementation is based on a the [graphics][1] library and is heavily inspired by [Elm][2]
A full implementation of TodoFRP can be found [online at Raynos/graphics example server][3]
| function notEmpty(val) { | |
| return !_.isEmpty(val); | |
| } | |
| function valueAndValidFrom(observable, validator) { | |
| validator = validator || notEmpty; | |
| return { | |
| valueS: observable.filter(validator), | |
| validS: observable.map(validator) | |
| }; |
| If you can see this, you're viewing a Github gist. |