ohanhi

Learning FP the hard way: Experiences on the Elm language

by Ossi Hanhinen, @ohanhi

with the support of Futurice 💚.

Licensed under CC BY 4.0.

Editorial note

evancz

Haskell Style Guide for Elm

Goal: a consistent style throughout all Elm projects that is easy to read and produces clean diffs to make debugging easier. This means valuing regularity and simplicity over cleverness.

Line Length

Keep it under 80 characters. Going over is not the end of the world, but consider refactoring before you decide a line really must be longer.

Variables

vishnevskiy

package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"os/signal"

evancz

Architecture in Elm

This document is a collection of concepts and strategies to make large Elm projects modular and extensible.

We will start by thinking about the structure of signals in our program. Broadly speaking, your application state should live in one big foldp. You will probably merge a bunch of input signals into a single stream of updates. This sounds a bit crazy at first, but it is in the same ballpark as Om or Facebook's Flux. There are a couple major benefits to having a centralized home for your application state:

1. There is a single source of truth. Traditional approaches force you to write a decent amount of custom and error prone code to synchronize state between many different stateful components. (The state of this widget needs to be synced with the application state, which needs to be synced with some other widget, etc.) By placing all of your state in one location, you eliminate an entire class of bugs in which two components get into inconsistent states. We also think yo

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

demisx

Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

Constant

katowulf

'use strict';

/**
 * This module monitors angularFire's authentication and performs actions based on authentication state.
 * directives/directive.ngcloakauth.js depends on this file
 *
 * Modify ng-cloak to hide content until FirebaseSimpleLogin resolves. Also
 * provides ng-show-auth methods for displaying content only when certain login
 * states are active.
 *

sapegin

grunt.initConfig  	
  stylus:
		options:
			use: [
				() -> require('autoprefixer-stylus')('last 2 versions', 'ie 8')
			]
		compile:
			files:
				'build/styles.css': 'styles/index.styl'
        

janl

Hoodie vs. Meteor

Preface: Not a Meteor Expert. Please comment with improvements.

Paraphrasing philosophy:

• Hoodie, Look ma! No Backend.
• Meteor, Backend Power on the Fronend.

A couple of high-level observations:

ndarville

Business Models

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