iamvery

Elixir

Functional programming for a Rubyist

Go

Command-line programs

Haskell

iamvery

def qsort(list)
  return list if list.empty?

  x, *xs = list
  smaller, larger = xs.partition { |n| n < x }

  qsort(smaller) + [x] + qsort(larger)
end

describe 'qsort' do

iamvery

require 'parslet'

class FooParser < Parslet::Parser
  rule(:space)  { match('\s').repeat(1) }
  rule(:space?) { space.maybe }

  rule(:dot)    { str('.') >> space? }
  rule(:colon)  { str(':') >> space? }
  rule(:comma)  { str(',') >> space? }
  rule(:comma?) { comma.maybe }

iamvery

Loading development environment (Rails 3.2.19)
irb(main):001:0> Time.zone
=> #<ActiveSupport::TimeZone:0x007fa2e4533d68 @name="Osaka", @utc_offset=nil, @tzinfo=#<TZInfo::TimezoneProxy: Asia/Tokyo>, @current_period=nil>
irb(main):002:0> p = Plan.new
=> #<Plan id: nil, decided_on: nil>
irb(main):003:0> time = 1.day.ago
=> Fri, 26 Sep 2014 06:31:54 JST +09:00
irb(main):004:0> time.to_date
###
=> Fri, 26 Sep 2014

iamvery

source 'https://rubygems.org'

gem 'activerecord', '~>4.0'
gem 'sqlite3'

iamvery

source 'https://rubygems.org'

gem 'activerecord', '~>3.0'
gem 'sqlite3'

iamvery

source 'https://rubygems.org'

gem 'activerecord'
gem 'sqlite3'

iamvery

params = { some: :thing }
oops = {}

def kwargs(some:)
  puts some
end

def hash(args)
  puts args.fetch(:some)
end

iamvery

require 'active_record'

class Foo < ActiveRecord::Base
  establish_connection adapter: 'sqlite3', database: ':memory:'

  connection.create_table :foos do |t|
    t.string :name, null: false
  end

  #has_many :bars

iamvery

# Live cells with < 2 living neighbors dies to underpop
# > 3 living neighbors dies to overpop
# Otherwise, lives!
#
# Dead cells with exactly 3 living neighbors is born

# . 0 .
# . 0 .
# . 0 .
#