drcmda

import Reconciler from 'react-reconciler'
import omit from 'lodash/omit'
import capitalize from 'lodash/capitalize'
import { actions as elementActions } from './store/elements'
import * as Elements from './elements'

const roots = new Map()
const emptyObject = {}

const Renderer = Reconciler({

inamiy

React & Elm inspired frameworks in Swift

This is a curated list of iOS (Swift & ObjC) frameworks which are inspired by React and Elm.

Swift frameworks

React-inspired

• ReactSwift by @ColinEberhardt
• https://github.com/ColinEberhardt/ReactSwift

zcaceres

Using Returning with Sequelize and Postgres

Some Sequelize commands don't return anything (or at least not anything useful) by default. Sequelize uses an option called returning to specify which data returns from a commands like .destroy() or update().

Let's look at three common Sequelize commands and see how to handle the data returned by each.

Create

By default, .create() returns the newly created instance. This is convenient, because we can then send data to the user:

reborg

Rich Already Answered That!

A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.

How to use:

• The link in the table of content jumps at the copy of the answer on this page.
• The link on the answer itself points back at the original post.

Table of Content

rofrol

Elm best practices

Style guide

• http://package.elm-lang.org/help/design-guidelines
• http://elm-lang.org/docs/style-guide
• https://github.com/NoRedInk/elm-style-guide
• https://gist.github.com/laszlopandy/c3bf56b6f87f71303c9f
• https://github.com/ohanhi/elm-style-guide

arobb

https://www.reddit.com/r/hackintosh/comments/4s561a/macos_sierra_16a238m_install_success_and_guide/

Step 1 (Creating a bootable macOS Sierra ISO for VirtualBox):

1. hdiutil attach /Applications/Install\ macOS\ Sierra\ Public\ Beta.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/install_app
2. hdiutil create -o /tmp/Sierra.cdr -size 7316m -layout SPUD -fs HFS+J
3. hdiutil attach /tmp/Sierra.cdr.dmg -noverify -nobrowse -mountpoint /Volumes/install_build
4. asr restore -source /Volumes/install_app/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase
5. rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages
6. cp -rp /Volumes/install_app/Packages /Volumes/OS\ X\ Base\ System/System/Installation/
7. cp -rp /Volumes/install_app/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/BaseSystem.chunklist

yelouafi

Motivation

In Redux, reducer composition with combineReducers offers a powerful way to handle complex update logic of an application. A reducer can encapsulate all the ways a part of the state is mutated because it can react to multiple types of actions.

But in some cases there is also a need for another type of factoring: often the update logic is simple (for example setting a single value), and the there are many places in the state shape where the update logic is the same.

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

asksven

If 2fa is enabled on github switch to ssh instead of https on linux

1. generate an ssh keypair on your linux box
ssh-keygen -t {rsa|dsa} 

2. add the public key to github: profile - settings - ssh keys

3. switch from https to ssh

Check your repo remote:

justinwoo

How to make a Cycle.js + Elm hybrid Etch-a-Sketch app

A couple of days ago, I wrote a Cycle.js app using Elm to render stuff to the page. This was pretty fun and got some attention, so I might as well write about it some.

Writing this thing

Overview

A Cycle.js application consists of three parts: your main function declaration, your drivers setup, and your application initialization with Cycle.run (which sets up the "Cycle" part of your application). We'll do the following in our app: