joeyates

def dump_table(sums)
  sums.each.with_index { |row, sum| puts "#{sum}: #{row.inspect}" }
end

def solvable?(set, size, sum)
  sums = (0 .. sum).map do |i|
    (0 .. size).map do |j|
      nil
    end
  end

joeyates

# HTTP

require "net/http"

Net::HTTP.start(host) do |http|
  response = http.send_request("FOO", "/", nil, nil)
  puts response.body
end

# HTTPS

joeyates

defmodule GenServerThatUsesStdio do
  use GenServer

  def start_link() do
    GenServer.start_link(__MODULE__, [])
  end
  
  def handle_cast(message, state) do
    IO.puts message
    {:noreply, state}

joeyates

# tags: #code-golf
# Define a method like this:
# `VarArgs.def(:hi, [:there, :world])
# You get a function:
# `def hi(there, world) ...`
defmodule VarArgs do
  defmacro def(name, args) do
    params = Enum.map(args, fn(a) -> Macro.var(a, nil) end)
    quote do
      def unquote(:"#{name}")(unquote_splicing(params)) do

joeyates

# Set up a bash function to cd to a Rails app's current directory and set the prompt

rails_app ()
{ 
    cd "$APP_PATH/current";
    export PS1="(\$APP_NAME:\$RAILS_ENV)\w>"
}

my_rails_app ()
{

joeyates

#!/usr/bin/env sh

# Usage:
# $ sh rbenv_local_ruby.sh {VERSION}
# If VERSION is missing, builds and installs 'local-ruby'

VERSION=${1:-local-ruby};
echo $VERSION
./configure --prefix=~/.rbenv/versions/$VERSION
make

joeyates

require: rubocop-rspec

AllCops:
  Include:
  - "**/*.gemspec"
  - "**/*.podspec"
  - "**/*.jbuilder"
  - "**/*.rake"
  - "**/*.opal"
  - "**/Gemfile"

joeyates

# Transform Bookrepublic catalogue API books data
# into an input suitable for CSV generation.

# Example call: see transform_array_via_ruby.sh

# we're interested in these fields:
[
  "isbn", "title", "description",
  "authors", "publisher", "publication_year", "created_at",
  "language", "translator",

joeyates

defmodule FormEncode do
  def form_encode(params) when is_map(params) do
    form_encode([], params)
  end

  def form_encode(nesting, value) when is_map(value) do
    Enum.map_join(value, "&", fn({k, v}) ->
      n1 = Enum.reverse(Enum.reverse(nesting), [k])
      form_encode(n1, v)
    end)

joeyates

# While modifying Ruby source, it's handy to only run the tests on the file you're modifying.
 
# See:
# * doc/contributing.rdoc in Ruby source,
# * https://bugs.ruby-lang.org/projects/ruby/wiki/DeveloperHowto

# Run core tests:
make test

# Run all tests: