David Bella davidbella

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Seattle

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davidbella / deli_counter.rb

Created September 30, 2013 21:04

Ruby: Deli line - practice using arrays and collections

	deli_line = []

	def take_a_number(deli_line, name)
	deli_line << name
	deli_line.count
	end

	p take_a_number(deli_line, "David")
	p take_a_number(deli_line, "Kyle")

davidbella / hashketball.rb

Created September 30, 2013 21:49

Ruby: Hashketball

	# Hashketball Nests
	#
	# Great news! You're going to an NBA game! The only catch is that you've been
	# volunteered to keep stats at the game.
	#
	# Using Nested Hashes, define a game, with two teams, their players, and the players stats:
	#
	# The game has two teams.
	#
	# A team has:

davidbella / iterators.rb

Created October 1, 2013 20:41

Ruby: Creating iterators

	def my_each(array)
	i = 0
	while i < array.length
	yield(array[i])
	i+=1
	end
	array
	end

davidbella / prime.rb

Created October 1, 2013 20:42

Ruby: Simple prime number solution in Ruby

	def prime?(number)
	tries = 0
	i = 5
	prime = true
	return false if number.even? \|\| number % 3 == 0 \|\| number < 2

	while (i*i) < number
	tries += 1
	prime = false and break if number % i == 0
	i += 2

davidbella / tower_of_hanoi.rb

Created October 2, 2013 13:04

Ruby: Tower of Hanoi with heavy annotation

	# tower_of_hanoi.rb

	a = [1,2,3,4]
	b = []
	c = []

	# Move the disks from one peg to another following the rules of Hanoi.
	#
	# number_of_disks - the total number of disks
	# from - the starting peg

davidbella / blog_post_scheduler.rb

Created October 2, 2013 13:07

Ruby: Group Shuffle

	# create a method called create_groups that, given an array of student names,
	# a group size, and a number of groups, will return an array of groups of
	# of students with no student in adjacent groups

	def create_groups(student_names, group_size, number_of_groups)
	student_names.shuffle!
	groups = []

	number_of_groups.times do
	group = []

davidbella / reddit_json.rb

Created October 2, 2013 14:04

Ruby: Reddit API and HTML output

	require 'json'
	require 'rest_client'

	reddit_hash = JSON.parse(RestClient.get('http://reddit.com/.json'))

	reddit_hash["data"]["children"].select! { \|story\| story["data"]["subreddit"] != "gaming" }

	puts "<html>"
	puts "<head>"
	puts "</head>"

davidbella / pigeons.rb

Created October 3, 2013 02:48

Ruby: Hash rearranging with pigeons

	pigeon_data = {
	:color => {
	:purple => ["Theo", "Peter Jr.", "Lucky"],
	:grey => ["Theo", "Peter Jr.", "Ms .K"],
	:white => ["Queenie", "Andrew", "Ms .K", "Alex"],
	:brown => ["Queenie", "Alex"]
	},
	:gender => {
	:male => ["Alex", "Theo", "Peter Jr.", "Andrew", "Lucky"],
	:female => ["Queenie", "Ms .K"]

davidbella / jukebox.rb

Created October 3, 2013 15:25

Ruby: Debugging the Jukebox cli app

	require_relative './song_library.rb'

	def jukebox(command)
	if command.downcase == "list"
	list_library
	else
	parse_command(command)
	end
	end

davidbella / version_sort.rb

Created October 3, 2013 16:03

Ruby: Version sort (bad, incomplete)

	require 'pp'
	class Array
	def version_sort
	version_sorted = []

	versions = self.collect do \|filename\|
	filename =~ /^foo-(.*)\.ext$/

	versions = $1.split('.')
	end