sammylupt

require 'json'
require 'rest_client'

reddit_hash = JSON.parse(RestClient.get('http://reddit.com/.json'))
posts = reddit_hash["data"]["children"]

#remove all posts which are NSFW
posts = posts.select { |post| post["data"]["over_18"] != true  }

sammylupt

require 'json'
require 'rest_client'

class Story
  attr_accessor :upvotes, :downvotes, :permalink, :title, :thumbnail, :over_18

  @@stories = []
  def initialize(post)
    self.upvotes = post["data"]["ups"]
    self.downvotes = post["data"]["downs"]

sammylupt

/* JS Happy Number Finder
Run from command line with node happyNumberFinder.js [number]
*/

var _ = require('underscore');

var HappyNumberFinder = (function(_){

  "use strict";

sammylupt

3 Main States:

• foo
• bar
  • substate 1
  • substate 2
  • substate 3
• baz

An application-wide menu bar has buttons for foo, bar, and baz.

sammylupt

defmodule HappyNumberFinder do
  def get_sum(number) do
    numbers = Integer.digits(number) #=> [4, 9]
    squared_numbers = Enum.map(numbers, fn(x) -> x * x end) #=> [16, 81]
    sum = Enum.reduce(squared_numbers, fn(x, total) -> x + total end) #=> 97
 end
end

sammylupt

defmodule HappyNumberFinder do
  def get_sum(number) do
    number
    |> Integer.digits #=> [4, 9]
    |> Enum.map(fn(x) -> x * x end) #=> [16, 81]
    |> Enum.reduce(fn(x, total) -> x + total end) #=> 97
  end
end

sammylupt

defmodule HappyNumberFinder do
  def get_sum(number) do
    number
    |> Integer.digits #=> [4, 9]
    |> Enum.map(&(&1 * &1)) #=> [16, 81]
    |> Enum.reduce(&(&1 + &2)) #=> 97
  end
end

sammylupt

defmodule HappyNumberFinder do
  
  # def get_sum(number)

  def find(number) do
    sum = get_sum(number)
   
    case sum do
      1 -> {:happy}
      _ -> find(sum)

sammylupt

defmodule HappyNumberFinder do

  # def get_sum(number)
 
  def find(number) do
    _find(number, [])
  end

  defp _find(number, guesses) do
    sum = get_sum(number)

sammylupt

defmodule HappyNumberFinder do
 
  # def get_sum(number)

  def find(number) do
    _find(number, [])
  end

  defp _find(number, guesses) where number in guesses do
    {:unhappy}