jashkenas

# Sounder sounds for class
# Requires an active microphone to pick up anything

require 'ruby-processing'

class MinimTest < Processing::App
  load_library "minim"
  import "ddf.minim"
  import "ddf.minim.analysis"
  

paulirish

// find all elements with a z-index and indicate what they are.
// uses css outline which is not supported in IE <8

function contrast(color){ return '#' + 
   (Number('0x'+color.substr(1)).toString(10) > 0xffffff/2 ? '000000' :  'ffffff'); 
}

jQuery('*')
    .filter(function(){ return $(this).css('zIndex') !== 'auto'; })
    .each(function(){

Gregg

Screencasting Framework

The following document is a written account of the Code School screencasting framework. It should be used as a reference of the accompanying screencast on the topic.

Why you should care about screencasting?

You're probably aren't going to take the time to read this document if you're not interested, but there are a lot of nice side effects caused by learning how to create quality screencasts.

1. Communicating more effectively - At Envy Labs we produce screencasts for our clients all the time. Whether it's demoing a new feature or for a presentation for an invester, they're often much more effective and pleasent than a phone call or screen sharing.

markjaquith

<?php
/*
Plugin Name: Disable Comment Querying
Description: Disables comment queries
Version: 0.1
License: GPL version 2 or any later version
Author: Mark Jaquith
Author URI: http://coveredwebservices.com/
*/

codeschool-courses

create_table(:tweets) do |t|
  t.string :message
  t.string :category_name
  t.string :location, :limit => 30
  t.boolean :show_location, :default => false
  t.integer :zombie_id
end

create_table :zombies do |z|
  z.string :name

isaacsanders

This is a post by Joel Spolsky. The original post is linked at the bottom.

This is such a common question here and elsewhere that I will attempt to write the world's most canonical answer to this question. Hopefully in the future when someone on answers.onstartups asks how to split up the ownership of their new company, you can simply point to this answer.

The most important principle: Fairness, and the perception of fairness, is much more valuable than owning a large stake. Almost everything that can go wrong in a startup will go wrong, and one of the biggest things that can go wrong is huge, angry, shouting matches between the founders as to who worked harder, who owns more, whose idea was it anyway, etc. That is why I would always rather split a new company 50-50 with a friend than insist on owning 60% because "it was my idea," or because "I was more experienced" or anything else. Why? Because if I split the company 60-40, the company is going to fail when we argue ourselves to death. And if you ju

rorra

require 'aws'

class Rake::Task
  def replace &block
    @actions.clear
    prerequisites.clear
    enhance &block
  end
end

steveclarke

Capybara

save_and_open_page

Matchers

have_button(locator)

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname