staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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ryanzhou

Getting Pow to work in OS X Yosemite

Some parts taken from: https://gist.github.com/kujohn/7209628

ipfw is officially deprecated and removed in OS X Yosemite. Pow requires another program pf to handle the port forwarding.

1. Anchor file

Create file /etc/pf.anchors/pow

redox

#chat-box.ubuntu.hidden-xs
  .closed
    .pull-right
      = link_to_function content_tag(:i, nil, class: 'glyphicon glyphicon-chevron-up').html_safe, 'chat.show()'
    .m-l-small
      = link_to_function 'Chat with us', 'chat.show()'
  .opened{style: 'display: none'}
    .header
      .pull-right
        = link_to_function content_tag(:i, nil, class: 'glyphicon glyphicon-plus-sign').html_safe, 'chat.maximize()', class: 'maximize', style: 'display: none'

lucaspiller

#!/bin/zsh
# computer activity data collection for http://jehiah.cz/one-two/
# Originally by Jehiah Czebotar. This verison by Luca Spiller.

FILE="$HOME/Dropbox/activity_log/`hostname`-`date +%Y%m%d`.log"

function log_activity()
{
    local TIME=`date "+%Y-%m-%dT%H:%M:%S%z"`
    local IDLE=$((`/usr/sbin/ioreg -c IOHIDSystem | sed -e '/HIDIdleTime/!{ d' -e 't' -e '}' -e 's/.* = //g' -e 'q'` / 1000000000 ))

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

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