Supernats

<p>
  <%= "Husband: #{husband}" %>
  <%= "Wife: #{ begin; husband.wife; rescue NoMethodError; end}" %>
  <%= "Status: #{ begin; husband.wife.status; rescue NoMethodError; end}" %>
</p>

Supernats

module StringAppleization
  refine String do
    def appleize
      split(' ').map do |word|
        appleize_word(word)
      end.join(' ')
    end

    private

Supernats

module Refinements::StringNumericalConversions
  refine String do
    def to_integer
      banana
      Integer(self)
    rescue ArgumentError
      nil
    end

    private

Supernats

[1] pry(main)> using Refinements::StringNumericalConversions
=> main
[2] pry(main)> "12".to_integer
NoMethodError: undefined method `to_integer' for "12":String
from (pry):2:in `<main>'
[3] pry(main)> class Foo
[3] pry(main)*   using Refinements::StringNumericalConversions
[3] pry(main)*   def bar
[3] pry(main)*     "12".to_integer
[3] pry(main)*   end

Supernats

class Wrapper
  attr_reader :string

  def initialize(string)
    @string = string
  end

  def upcase!
    string.upcase!
  end

Supernats

describe "carrots diced with celery julienned" do
  let(:chosen_carrots) { carrots_diced }
  let(:chosen_celery) { celery_diced }

  describe "user is selecting carrots" do
    let(:changed_vegetable) { chosen_carrots }

    it_sets :celery, to: :diced
    it_does_not_change :carrots
  end

Supernats

~/personal$ mkdir git_test
~/personal$ cd git_test/
~/personal/git_test$ git init
Initialized empty Git repository in /Users/baldur/personal/git_test/.git/
~/personal/git_test$ echo "hi i'm a commit" > first.txt
~/personal/git_test$ git add first.txt
~/personal/git_test$ gcom -m "This is my first commit"
[master (root-commit) 129986c] This is my first commit
 1 file changed, 1 insertion(+)
 create mode 100644 first.txt

Supernats

poop_name_is_long = this_is_a_boolean_checker ?
  the_stuff_you_do_for_true :
  the_stuff_you_do_for_false

poop_name_is_long =
  if this_is_a_boolean_checker
    the_stuff_you_do_for_true
  else
    the_stuff_you_do_for_false
  end

Supernats

class RedisModel::Base
  attr_reader :source, :target

  def initialize(source:, target:)
    @source = source
    @target = target
  end

  class << self
    def all

Supernats

def does_begin_matter?
  puts "i want these errors to bork everything"
  raise "BEFORE"
  begin
    raise "AFTER"
  rescue => e
    puts "I'll handle these errors specially"
    puts "#{e}"
  end
end