thchia

// Main
function combineReducers(reducerDict) {
  const _initialState = getInitialState(reducerDict);
  return function(state = _initialState, action) {
    return Object.keys(reducerDict).reduce((acc, curr) => {
      let slice = reducerDict[curr](state[curr], action);
      return { ...acc, [curr]: slice };
    }, state);
  };
}

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

iloveitaly

def fill_stripe_elements(card)
  using_wait_time(15) { within_frame('stripeField_card_element0') do
    card.to_s.chars.each do |piece|
      find_field('cardnumber').send_keys(piece)
    end

    find_field('exp-date').send_keys("0122")
    find_field('cvc').send_keys '123'
    find_field('postal').send_keys '19335'
  end }

danidiaz

	  ---			-----------------			----
	  Map			Quick Explanation			Link
	  ---			-----------------			----
<	 <F1>	Causes Netrw to issue help
	 <cr>	Netrw will enter the directory or read the file      |netrw-cr|
	 <del>	Netrw will attempt to remove the file/directory      |netrw-del|
	 <c-h>	Edit file hiding list                                |netrw-ctrl-h|
	 <c-l>	Causes Netrw to refresh the directory listing        |netrw-ctrl-l|
	 <c-r>	Browse using a gvim server                           |netrw-ctrl-r|
	 <c-tab> Shrink/expand a netrw/explore window                |netrw-c-tab|

martindemello

class PurchaseApprover
  # Implements the chain of responsibility pattern. Does not know anything
  # about the approval process, merely whether the current handler can approve
  # the request, or must pass it to a successor.
  attr_reader :successor

  def initialize successor
    @successor = successor
  end

barrettclark

namespace :db do
  namespace :heroku do
    desc "capture DB Backup"
    task :capture_backup => :environment do
      if Rails.env == 'development'
        Bundler.with_clean_env do
          config = Rails.configuration.database_configuration[Rails.env]
          system "heroku pg:backups capture"
        end
      end

samselikoff

This post is also on my blog, since Gist doesn't support @ notifications.

---

Components are taking center stage in Ember 2.0. Here are some things you can do today to make the transition as smooth as possible:

• Use Ember CLI
• In general, replace views + controllers with components
• Only use controllers at the top-level for receiving data from the route, and use Ember.Controller instead of Ember.ArrayController or Ember.ObjectController
• Fetch data in your route, and set it as normal properties on your top-level controller. Export an Ember.Controller, otherwise a proxy will be generated. You can use Ember.RSVP.hash to simulate setting normal props on your controller.

mlocher

#!/bin/bash
# 
# NOTICE
# A new and updated version of this script is provided at 
# https://github.com/codeship/scripts/blob/master/packages/phantomjs.sh
# Please switch to that version instead!
PHANTOMJS_VERSION="1.9.8"

# clean old version and setup directories
rm -rf ~/.phantomjs

brasic

#!/usr/bin/env ruby

require 'redis'

# Clear a large number of keys matching a pattern using SCAN and
# pipelining to avoid killing the server.
class ClearKeys
  def initialize(pattern, host='localhost', postprocess_pattern=nil)
    @redis = Redis.new(host: host)
    @pattern = pattern

somebox

Thoughts about Rails Presenters

This is a collection of links, examples and rants about Presenters/Decorators in Rails.

---

The "Decorator" pattern slowly started gaining popularity in Rails several years ago. It is not part of core Rails, and there's many different interpretations about how it should work in practice.

Jay Fields wrote about it in 2007 (before he switched back to Java and then Clojure): http://blog.jayfields.com/2007/03/rails-presenter-pattern.html