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

4poc

/**
 * GOZORK Text Adventure Game
 * by apoc <http://apoc.cc>
 *
 * Inspired by the infamous beginning of Zork I.
 * Reading the source will obviously spoil the game.
 * The goal is to somehow kill the troll.
 * Oh yeah and: This is my first GO program! Which would be
 *   my perfect excuse for the bad code quality1!
 * Here is a solution/transcript:

hyg

func openbrowser(url string) {
	var err error

	switch runtime.GOOS {
	case "linux":
		err = exec.Command("xdg-open", url).Start()
	case "windows":
		err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
	case "darwin":
		err = exec.Command("open", url).Start()

Drakulix

#!/bin/sh

#  dependencies

echo "Installing dependencies via Homebrew (http://brew.sh)"

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
brew update

brew install gcc48

lunny

package main

import (
	"fmt"
	"syscall"
)

type DiskStatus struct {
	All  uint64 `json:"all"`
	Used uint64 `json:"used"`

WickyNilliams

/**
 * follows a path on the given data to retrieve a value
 *
 * @example
 * var data = { foo : { bar : "abc" } };
 * followPath(data, "foo.bar"); // "abc"
 * 
 * @param  {Object} data the object to get a value from
 * @param  {String} path a path to a value on the data object
 * @return the value of following the path on the data object

sergiotapia

import (
    "crypto/md5"
    "encoding/hex"
)

func GetMD5Hash(text string) string {
    hasher := md5.New()
    hasher.Write([]byte(text))
    return hex.EncodeToString(hasher.Sum(nil))
}

blackfalcon

.bar {
  background: red;
}

andyj

<!-- country codes (ISO 3166) and Dial codes. -->
<select name="countryCode" id="">
	<option data-countryCode="GB" value="44" Selected>UK (+44)</option>
	<option data-countryCode="US" value="1">USA (+1)</option>
	<optgroup label="Other countries">
		<option data-countryCode="DZ" value="213">Algeria (+213)</option>
		<option data-countryCode="AD" value="376">Andorra (+376)</option>
		<option data-countryCode="AO" value="244">Angola (+244)</option>
		<option data-countryCode="AI" value="1264">Anguilla (+1264)</option>
		<option data-countryCode="AG" value="1268">Antigua &amp; Barbuda (+1268)</option>

yuya-takeyama

package main

import (
    "fmt"
)

func Sqrt(x float64) float64 {
    x64 := float64(x)
    
    xn := float64(0)