vapidbabble

# stolen from rosetta code to look at later
def eratosthenes(n)
  nums = [nil, nil, *2..n]
  (2..Math.sqrt(n)).each do |i|
    (i**2..n).step(i){|m| nums[m] = nil}  if nums[i]
  end
  nums.compact
end
 
p eratosthenes(100)

vapidbabble

#first stab
h=Hash.new
(File.read "grades.txt").split("\n").each do |pair|
    (person, grade)=pair.split ' '
    if h[person]
        h[person] << grade.to_i
    else
        h[person]=[grade.to_i]
    end
end

vapidbabble

;; fizzbuzz without conditionals in Clojure

; Simple patten matching using a single map lookup
(defn fizzbuzz [x]
  (let [v [(= (mod x 3) 0) (= (mod x 5) 0)]]
    ({[true false] "fizz"
      [false true] "buzz"
      [true true] "fizzbuzz"
      [false false] x} v)))

vapidbabble

import Color exposing (..)
import Graphics.Collage exposing (..)
import Graphics.Element exposing (..)

hexagon : Color -> Form
hexagon clr = outlined (solid clr) (ngon 6 150)

hex_on_a_point : Float -> Color -> Form
hex_on_a_point deg clr = rotate (degrees deg) (hexagon clr)

vapidbabble

Loop through a given directory's subdirectories ( 1 deep)
  In each subdirectory check only files that are older than a day.
  If the file is a PDF file or zero byte move to an archive directory and log.
  At the end, mail the list of files, if any, to somebody.

vapidbabble

Hi,

I would love to hear your opinion on the idea of “combining RDoc and RSpec to create testable documentation”. Let me explain:

Given you have several RDoc files like this one:

= Examples

Some example code snippets.

vapidbabble

.DS_Store
*.csv
*.pdf

vapidbabble

h       scroll left
j       scroll down
k       scroll up
l       scroll right
gg      scroll to top of the page
G       scroll to bottom of the page
f       activate link hints mode to open in current tab
F       activate link hints mode to open in new tab
r       reload

vapidbabble

# Newbie Programmer
def factorial(x)
  if x == 0
    return 1
  else
    return x * factorial(x - 1)
  end
end
puts factorial(6)
puts factorial(0)

vapidbabble

require 'rss/2.0'
require 'open-uri'

module ApplicationHelper
  class EmptyURL < RuntimeError
  end

  def rss_content(name)
    content_object = StaticContent.find_by_name(name)
    if content_object.nil? || (Time.now - content_object.updated_at) > 4.hours