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]
In other words, the following asynchronous code:
var d = Domain.create()
d.on("error", function (error) {
console.error("Error with the twitterverse:", error)
})
d.enter()
This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.
Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:
getTweetsFor("domenic", function (err, results) {
// the rest of your code goes here.
| # By Oto Brglez - @otobrglez | |
| # Rake task. Put in your (lib/tasks) folder of your Rails application | |
| # Execute with "rake dropbox:backup" | |
| # Configuration must be inside config/dropbox.yml file | |
| namespace :dropbox do | |
| desc "Backup production database to dropbox" | |
| task :backup do | |
| require 'aws/s3' | |
| require 'heroku' | |
| require 'heroku/command' | |
| require 'heroku/command/auth' | |
| require 'heroku/command/pgbackups' | |
| task :cron do | |
| class Heroku::Auth | |
| def self.client | |
| Heroku::Client.new ENV['heroku_login'], ENV['heroku_passwd'] |
| module ApplicationHelper | |
| # pretty page titles | |
| # yield_for(:title, 'default text goes here') in layout | |
| # content_for(:title, 'some text') in view | |
| def yield_for(content_sym, default) | |
| output = content_for(content_sym) | |
| output = default if output.blank? | |
| output | |
| end | |
| end |
| # Gemfile | |
| … | |
| gem 'uuidtools' | |
| … |
| #! /bin/sh | |
| sed -E -e 's_[(]?(/[^:]*/([^ ]*)):([0-9]+):([0-9]*)[)]?_[\2:\3:\4] txmt://open/?url=file://\1\&line=\3\&column=\4_g' |
