(by @andrestaltz)
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.
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 |
(by @andrestaltz)
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.
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
; A REPL-based, annotated Seesaw tutorial | |
; Please visit https://github.com/daveray/seesaw for more info | |
; | |
; This is a very basic intro to Seesaw, a Clojure UI toolkit. It covers | |
; Seesaw's basic features and philosophy, but only scratches the surface | |
; of what's available. It only assumes knowledge of Clojure. No Swing or | |
; Java experience is needed. | |
; | |
; This material was first presented in a talk at @CraftsmanGuild in | |
; Ann Arbor, MI. |
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:
This playbook has been removed as it is now very outdated. |
Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.
# Description: Boxstarter Script | |
# Author: Jess Frazelle <jess@linux.com> | |
# Last Updated: 2017-09-11 | |
# | |
# Install boxstarter: | |
# . { iwr -useb http://boxstarter.org/bootstrapper.ps1 } | iex; get-boxstarter -Force | |
# | |
# You might need to set: Set-ExecutionPolicy RemoteSigned | |
# | |
# Run this boxstarter by calling the following from an **elevated** command-prompt: |
This is a guide on how to email securely.
There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.