sinisterchipmunk

Copyright (C) 2011 by Colin MacKenzie IV

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in

pjc

# Create Fibonnaci Array
a = [1,2]
upto = 4_000_000
while a[-2] + a[-1] < upto
  a << a[-2] + a[-1] 
end
 
# Create sum of even Fibonnaci numbers
sum = 0
a.each { |x| sum+= x if x.even? }

ryansobol

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

hopsoft

# lib/tasks/db.rake
namespace :db do

  desc "Dumps the database to db/APP_NAME.dump"
  task :dump => :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd

wh1tney

Gist

This is a quick tutorial explaining how to get a static website hosted on Heroku.

Why do this?

Heroku hosts apps on the internet, not static websites. To get it to run your static portfolio, personal blog, etc., you need to trick Heroku into thinking your website is a PHP app. This 6-step tutorial will teach you how.

Basic Assumptions

ubermajestix

# Sick of using Hashes or Hashie::Mash objects when working with API responses? 
# Yeah, me too.
# Let's use Virtus to make some nice objects that work like we'd expect.
# For more checkout: https://github.com/solnic/virtus

# Given we get some JSON back from an API like this
{things: [
  {name: 'Thing 1', created_at: '2014-09-11 15:57:33 -0700'}, 
  {name: 'Thing 2', created_at: '2014-09-11 15:57:33 -0700'}
  ]

rosswd

Running JavaScript from the command line

I get quite frustrated running JS by pasting into Chrome/FF and sometimes I like to keep everything local. These are some notes on using Apple's built in intrerpreter, node or phantom.

Using Apple's built in interpreter

Create a symlink by putting jsc into /usr/bin

sudo ln -s /System/Library/Frameworks/JavaScriptCore.framework/Versions/A/Resources/jsc /usr/bin

1. Use the jsc alias as a REPL

brianpetro

Because I couldn't find these with a quick Google search on 28 April 2015:

Usage:
  rails new APP_PATH [options]

Options:
  -r, [--ruby=PATH]                                      # Path to the Ruby binary of your choice
                                                         # Default: /home/brian/.rvm/rubies/ruby-2.2.0/bin/ruby
  -m, [--template=TEMPLATE]                              # Path to some application template (can be a filesystem path or URL)
      [--skip-gemfile], [--no-skip-gemfile]              # Don't create a Gemfile

kirs

# Cleans up branches like:
# if Shopify.rails_next?
#   # Rails 5 login
# else 
#   # Rails 4 login
# end
module RuboCop
  module Cop
    module ShopifyRails
      class RailsNextUnless < Cop

amratab

Suppose you have two heroku remote apps
myapp-dev & myapp-prod
and two git branches 
master(for dev) & production
Now lets setup heroku on the existing git repo in your local machine
Assuming the branches and the apps exist already
git remote add heroku-myapp-dev https://git.heroku.com/myapp-dev.git 
git remote add heroku-myapp-prod https://git.heroku.com/myapp-prod.git