mikelikesbikes

arr=`echo $PATH | tr ':' '\n'`; 

for path in ${arr[*]}; do 
  printf "%5s %s\n" `ls $path | wc -l` $path
done

mikelikesbikes

/* Here is your chance to take over Socrates!  


Spend 10 minutes on each of the following hacks to the socrates website.
Enter them in the console to make sure it works and then save
your results here. 

Choose a new pair for each. Add your names to the section you complete.
*/

mikelikesbikes

$15.05
mixed fruit,$2.15
french fries,$2.75
side salad,$3.35
hot wings,$3.55
mozzarella sticks,$4.20
sampler plate,$5.80

mikelikesbikes

require 'optparse'
require 'ostruct'

options = OpenStruct.new
parser = OptionParser.new do |opts|
  opts.on("-f", "--force", "Force something to happen") do |force|
    options.force = force
  end
end

mikelikesbikes

CHECKSUM_CHARS = ((?A..?Z).to_a + (0..5).to_a).join

# String -> String
def id_with_checksum(sfid)
  # protection from bad people who misuse things
  return sfid if sfid.length == 18
  raise ArgumentError.new("sfid must be 15 characters") unless sfid.length == 15

  # The meat.
  suffix = sfid.chars \ # String -> [String]

mikelikesbikes

require 'benchmark'
require 'hamster'
require 'deps/clojure-1.4.0.jar'

Benchmark.bm do |bm|
  def fill(hash)
    (0..10000).reduce(hash) do |h, i|
      if h.class == Java::ClojureLang::PersistentHashMap
        h.assoc(i, 1)
      elsif h.respond_to?(:put)

mikelikesbikes

brew tap homebrew/dupes
brew install apple-gcc42

mikelikesbikes

describe "fibonacci" do
  [
    [0, 0],
    [1, 1],
    [2, 1],
    [3, 2],
    [4, 3],
    [5, 5],
    [6, 8]
  ].each do |index, value|

mikelikesbikes

;; http://stackoverflow.com/questions/1590716/clojure-prime-numbers-lazy-sequence
(def primes
  (let [primes (atom [])]
    (for [n (iterate inc 2)
          :when (not-any? #(zero? (rem n %))
                          (filter #(<= % (Math/sqrt n))
                                  @primes))]
      (do (swap! primes conj n)
          n))))

mikelikesbikes

require 'benchmark'

Enumerable.class_eval do

  def frequency_group_by
    group_by{|x| x}.map { |x, xs| [x, xs.length] }
  end

  def frequency_each
    h = Hash.new(0)