bswinnerton

Keybase proof

I hereby claim:

• I am bswinnerton on github.
• I am bswinnerton (https://keybase.io/bswinnerton) on keybase.
• I have a public key whose fingerprint is B157 7B86 DC69 A3D1 AA57 3178 7274 3B7D E552 E25A

To claim this, I am signing this object:

bswinnerton

Back End Web Development

Ruby

Data types

1. String - denoted by single or double quotes
   e.g. "Brooks", 'brooks'

2. Integer (aka Fixnum) - A whole number
   e.g. 1, 42

bswinnerton

" Put this in your .vimrc and whenever you `git commit` you'll see the diff of your commit next to your commit message.
" For the most accurate diffs, use `git config --global commit.verbose true`

" BufRead seems more appropriate here but for some reason the final `wincmd p` doesn't work if we do that.
autocmd VimEnter COMMIT_EDITMSG call OpenCommitMessageDiff()
function OpenCommitMessageDiff()
  " Save the contents of the z register
  let old_z = getreg("z")
  let old_z_type = getregtype("z")

bswinnerton

module SerializableAttributes
  extend ActiveSupport::Concern

  included do
    class << self
      attr_reader :serializable_column
    end

    before_save :update_serializable_column

bswinnerton

#Ruby on Rails Office Hours - Session 2 ##Brewing your own server with Chef and Capistrano on Digital Ocean

Google hangout: http://www.youtube.com/watch?v=3W4kXyZWDJA
Real time chat: http://tlk.io/ror-study-group
Chef Notes: https://github.com/intercity/chef-repo

Code Along

1. Create a droplet on Digital Ocean

bswinnerton

class Fixnum
  def sam_prime?
    return false if self == 1
    2.upto(Math.sqrt(self).to_i) { |n| return false if self % n == 0 }
    return true
  end

  def refactored_prime?
    2.upto(Math.sqrt(self).to_i) { |n| return false if self % n == 0 }
    self == 1 ? false : true

bswinnerton

class Array
  def spiral
    array = []
    array << self.shift
    array << self.transpose.reverse.spiral unless self.empty?
    array.flatten
  end
end

bswinnerton

#Ruby on Rails Office Hours - Session 1

Google hangout: http://www.youtube.com/watch?v=NUSsraVYjcY
Real time chat: http://tlk.io/GA_ROR_study
The source code to this lecture can be found here: https://github.com/Ruby-on-Rails-Study-Group/tdd_blog
Feedback: https://docs.google.com/forms/d/1LHnYjyPbApbZ2ayPvWA3EIa4QcXhU61HX80LZlO4qSE/viewform

##Introduction

Brooks Swinnerton

bswinnerton

require 'rspec'

describe 'fib(n)' do
  it 'calculates a fibonacci number based on index' do
    expect(fib(6)).to eq(8)
  end
end


def fib(n)

bswinnerton

require 'rspec'

describe 'is_prime?' do
  it 'calculates if a given number is prime' do
    expect(is_prime?(5)).to eq(true)
  end
end

describe 'prime(n)' do
  it 'calculates the nth prime' do