jdkanani

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aspyct

# Sample implementation of quicksort and mergesort in ruby
# Both algorithm sort in O(n * lg(n)) time
# Quicksort works inplace, where mergesort works in a new array

def quicksort(array, from=0, to=nil)
    if to == nil
        # Sort the whole array, by default
        to = array.count - 1
    end

evanwalsh

#!/usr/bin/env ruby

# Download imgur.com galleries easily
#
# Requirements:
#   gem install nokogiri
#
# Usage:
#   ruby imgur.rb [url of gallery] [directory to download into] [namespace for files]
#

uu59

vendor/
.bundle/
node_modules/
Gemfile.lock

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

dansimco

require "rubygems"
require 'sinatra'
require "aws/s3"

get '/' do
  return %Q{
    <form action="upload" method="post" accept-charset="utf-8" enctype="multipart/form-data">
      <div>
        <input type="file" name="file" value="" id="file">
      </div>

peterc

# http://codility.com/ for info

def equi(a)
  pres, posts = 0, a.reduce(:+)

  0.upto(a.length - 1) do |pivot|
    pres += (pivot > 0 ? a[pivot-1] : 0)
    posts -= a[pivot]
    return pivot if pres == posts
  end

jasoares

#!/bin/bash

# Create the directory structure
mkdir -p features/step_definitions
mkdir -p features/support

# Create a placeholder for the step_definitions folder
touch features/step_definitions/"$(basename `pwd`)_steps.rb"

# Create the environment file

rlemon

#Stack Overflow Pro-Forma comments

###[A]Answers just to say Thanks!
Please don't add "thanks" as answers. Invest some time in the site and you will gain sufficient privileges to upvote answers you like, which is the community way of saying thank you.

###[Q]Nothing but a URL (and isn't spam)
Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.

###[A]OP adding a new question as an answer
If you have another question, please ask it by clicking the [Ask Question](http://stackoverflow.com/questions/ask) button.

peterc

# Simple 16 step drum machine experiment with Node and CoffeeScript
#   by Peter Cooper - @peterc
#
#   Inspired by Giles Bowkett's screencast at
#   http://gilesbowkett.blogspot.com/2012/02/making-music-with-javascript-is-easy.html
#
#   Screencast demo of this code at http://www.youtube.com/watch?v=qWKkEaKL6DQ
#
# Required:
#   node, npm and coffee-script installed