DiegoSalazar

trials = 10
seconds = 1
threads = []
start_time = Time.now.to_f

trials.times do |i|
  threads << Thread.new { sleep seconds }
end

threads.each &:join

DiegoSalazar

#!/bin/bash
# quickly add a host to the hosts file

hostname="$1"
ipaddress="$2"
hostsfile="$3"

if [ -z "$ipaddress" ]; then
  ipaddress="127.0.0.1"
fi

DiegoSalazar

# install the levenshtein gem first with:
# sudo gem install levenshtein-ffi

require 'levenshtein'

def names_are_close?(s1, s2, tolerance = 1)
  Levenshtein.distance(s1, s2) == tolerance
end

name_pairs = [

DiegoSalazar

Carshow App Tasks

• Back button - Should say "Admin" when logged in.
• Admin > Show Settings > Location Address should allow to enter physical address and location (venue) name.
• Admin > Show Settings > Date & Time is for duration of actual show (day of show).
• Admin > Show Settings > Below "Location Address" add section (not just a field, add a heading for it too) to enter show website address.
• Admin > Show Settings > Judging - when selecting "Closed Judging" it should disable the participant voting options on Participant accounts.
• Admin > Show Settings > Upload Show Logo - should allow to upload image. Most likely for flyer, not logo.
• Admin > Car Classes > Add a Subclass - Does not work.
• Admin > Car Classes > Add a Subclass - Add a description text field for each sub class.

DiegoSalazar

add_sftp_user() {
  sudo useradd -d /home/$1 $1
  sudo passwd $1
  sudo usermod -g sftpusers $1
  sudo usermod -s /bin/false $1
  sudo chown $1:sftpusers -R /home/$1
  sudo chown root:root /home/$1
}

DiegoSalazar

# testing out class variables are shared between instances
require 'thread'

class A
  @m = Mutex.new
  @@m = Mutex.new
  M = Mutex.new

  def self.m; @m end
  def self.mm; @@m end

DiegoSalazar

# I iterate over ints using inject and pass in an accumulator
# which for the purposes of summing will have to be 0
# each number is added to the accumulator and the final result
# is returned
def sum(ints)
  ints.inject(0) { |sum, i| sum += i }
end

# this was fun, I sort and mutate the ints array to maintain its
# newly sorted state, pop off the last value which will now be

DiegoSalazar

# using string interpolation
def hello(name)
  "Hello, #{name}"
end

# I first check if the first letter is alphabetical
# then see if the first lower case letter is a vowel
# and return the opposite of that boolean
def starts_with_consonant?(s)
  return false unless s[/^[a-z]/i]

DiegoSalazar

class BookInStock
  # declare setters and getters
  attr_accessor :isbn, :price

  def initialize(isbn, price)
    # checking for empty string or price is greater 0, raises exception
    raise ArgumentError if isbn.strip.empty? || price <= 0
    @isbn, @price = isbn, price
  end

DiegoSalazar

def for_each(items, do_this, options = { else: -> {} })
  unless items.empty?
    items.each &do_this
  else
    options[:else].call
  end
end

items = [1,2,3]
for_each items, ->(i) {