karussell

Several times in a month there pop up questions regarding query structure on the ElasticSearch user group.

Although there are good docs explaining this in depth probably the bird view of the Query DSL is necessary to
understand what is written there. There is even already some good external documentation available:
http://www.elasticsearch.org/tutorials/2011/08/28/query-dsl-explained.html

And there were attempts to define a schema:

http://groups.google.com/group/json-schema/browse_thread/thread/ae498ee818155d50
https://gist.github.com/8887766ca0e7052814b0

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

scottjacobsen

SSH agent forwarding is great. It allows you to ssh from one server to
another all the while using the ssh-agent running on your local
workstation. The benefit is you don't need to generate ssh key pairs
on the servers you are connecting to in order to hop around.

When you ssh to a remote machine the remote machine talks to your
local ssh-agent through the socket referenced by the SSH_AUTH_SOCK
environment variable.

So you the remote server you can do something like: 

yoavniran

The Ultimate Unit Testing Cheat-sheet

---

• Sinon Chai
• Chai
• Sinon

chrissimpkins

Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.

Key to the Keys

• ⌘ : Command key
• ⌃ : Control key
• ⌫ : Delete key
• ← : Left arrow key
• → : Right arrow key
• ↑ : Up arrow key

jamestalmage

Why

Doing require extensions correctly is essential, because:

1. Users should be able to install multiple extensions in succession, and have them work together.
2. Coverage tools like nyc need it to reliably supply coverage information that takes into account sourcemaps from upstream transforms.
3. Because non-standard, un-predictable behavior causes hard to solve bugs, and major headaches for project maintainers.

What is a require extension anyways?

jeremyzilar

Copy Trello Board as text or markdown

Wouldn't it be nice to copy out your Trello board as plain text or markdown to be able to put it in a weekly memo, shipping notice or release notes? Now you can!

How to use this

Copy this line of JS and paste it into the CONSOLE in your browser. The results will be saved to your clipboard.

Option 1: Copy your Trello Board as Markdown

This will copy your columns + cards as markdown right to left

var s = []; s.push("# " + jQuery(".board-header").children()[0].innerText); jQuery.fn.reverse = [].reverse; jQuery(".list:has(.list-header-name)").reverse().each(function() {s.push("\n## " + jQuery(this).find(".list-header-name-assist")[0].innerText + "\n"); jQuery(this).find(".list-card-title").each(function() {s.push("* " + this.innerText); }); }); copy(s.join("\n"));