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

JoeyBurzynski

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

tobyhede

 -- PostgreSQL 9.2 beta (for the new JSON datatype)
 --   You can actually use an earlier version and a TEXT type too
 -- PL/V8 http://code.google.com/p/plv8js/wiki/PLV8

 -- Inspired by 
 -- http://people.planetpostgresql.org/andrew/index.php?/archives/249-Using-PLV8-to-index-JSON.html
 -- http://ssql-pgaustin.herokuapp.com/#1

  -- JSON Types need to be mapped into corresponding PG types 
  -- 

andkerosine

$stack, $draws = [], {}

def method_missing *args
  return if args[0][/^to_/]
  $stack << args.map { |a| a or $stack.pop }
  $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end

class Array
  def +@

bazzargh

! Block friends favourited tweets
twitter.com##.tweet-has-context:not([data-retweeter])
! fake activity
twitter.com##li[data-component-context="generic_activity"]

! since you were away
twitter.com##.TimelineTweetsModule

! don't care what's trending
twitter.com##.trends.Trends.module

glv

# This sets up fish so that, if you type a command that should be
# run using Bundler, it first automatically prepends "bundle exec"
# to the command line buffer before executing it. Works for all
# commands found in the "bin" directory of the current bundle.
#
# To override this behavior and run such a command without Bundler,
# prefix with "command" (e.g., `command rake -T`)
#
# Pros (vs binstubs or aliases):
# * automatically adjusts to bundle changes

cgrand

;; (cond-let 
;;   (odd? x) [x n] (inc x)  
;;   (< n 10) [y (inc n)] 10
;;   :else n))

;; we want the above to yield
;; (let [x n]
;;   (if (odd? x)
;;      (inc x)

orderthruchaos

if ! Enum.member?(:erlang.loaded, IEx.UserDrv.Config) do
  defmodule IEx.UserDrv.Config do
    import Process, only: [group_leader: 0]

    @moduledoc """
    Structure to hold :user_drv configuration information.
    """

    defstruct node: Node.self, pid: nil, port: nil, leader: group_leader

markmcspadden

I'm writing in response to events that have recently come to light involving a sexual assault at a tech conference. Background information can be found [here][1], [here][2], and [here][3] as well as on twitter and google.

---

I've been watching this from the sidelines, and I've been wrestling with several questions that I can't seem to shake and that I really don't have answers to.

I wear many hats, both in the tech community and others. I'm a coder, a speaker, a user group organizer, a conference organizer, and even a boss. Each of those roles colors how I see this, but there's one role that is overpowering in my reaction.

See, I'm a Dad. A dad of two beautiful and innocent girls who are 3 and 2. They have their whole lives in front of them and so the questions I'm struggling with are:

zerowidth

Proc.module_eval { def method_missing(m,*a); call(m.to_s,*a); end }
Array.module_eval { def rest; self[1..-1]; end }
Object.module_eval { def let; yield self; end }

Music = Module.new do
  def self.load(filename)
    depth      = ->(l) { %r(^([\s-]*)\w).match(l)[1].length }
    ldepth     = ->(l) { %r(^(\s*)\S).match(l)[1].length }
    nonzero    = ->(n) { n > 0 }
    empty      = ->(c) { c.empty? }