pepijndevos

(ns persistent-heap)

(defn swap [heap idx idy]
  (assoc heap idx (get heap idy) idy (get heap idx)))

(defn children [idx]
  (let [idx (inc (* idx 2))
        idy (inc idx)]
    [idx idy]))

tcr

# Asynchronous DSL for CoffeeScript

serial = (f) ->
  next = -> arr.shift().apply(null, arguments) if arr.length
  arr = (v for k, v of f(next))
  next()
  null

parallel = (f, after = ->) ->
  res = {}; arrc = 0

nheinrich

app/assets/stylesheets/application.css

/*
  *= require "application/all"
*/

app/assets/stylesheets/application/_all.sass

bkimble

#!/usr/bin/env ruby

# List all keys stored in memcache. 
# Credit to Graham King at http://www.darkcoding.net/software/memcached-list-all-keys/ for the original article on how to get the data from memcache in the first place.

require 'net/telnet'

headings = %w(id expires bytes cache_key)
rows = []

Epictetus

=begin
Need to install gems heroku, newrelic_rpm
 $ gem install heroku newrelic_rpm

Set your apps setting
 app_name    : heroku's app_name of auto scaling
 license_key : NewRelic api key. You can get heroku's NewRelic admin console. "App setting" and "Agent configuration"

execute with cron every minutes
 $ ruby ./adjust_dynos_with_newrelic.rb

yahelc

// ==UserScript==
// @name		Show Full Domain on Hacker News posts
// @description	Sets full domain on hacker news posts. 
// @namespace	http://userscripts.org/users/119115
// @include      http://news.ycombinator.com/*
// @include      https://news.ycombinator.com/*
// @match        https://news.ycombinator.com/*
// @match        http://news.ycombinator.com/*
// ==/UserScript==

burke

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

JoshuaEstes

Moved to https://github.com/JoshuaEstes/CheatSheets

dpk

def djb2 str
  hash = 5381
  str.each_byte do |b|
    hash = (((hash << 5) + hash) + b) % (2 ** 32)
  end
  hash
end

def djb2a str

gorenje

source :rubygems

gem 'sinatra'
gem 'json'
gem 'omniauth'
gem 'omniauth-oauth2'
gem 'omniauth-github'
gem 'omniauth-facebook'
gem 'omniauth-twitter'
# gem 'omniauth-att', :path => File.expand_path("./../../omniauth-att", __FILE__)