Soo Philip Jason Kim philipjkim

원제 : 55 Trivia Notations you should know in Ruby
원문 : kyoendo
출처 : http://melborne.github.io/2013/03/04/ruby-trivias-you-should-know-4/
번역 : nacyot [email protected]
라이센스 : cc-by-nc

알아두면 도움이 되는 55가지 루비 기법

Ruby는 즐거운 언어입니다. Ruby를 사용하다보면 매뉴얼에도 나와있지 않은 '작은 발견'을 만나게 됩니다. 이러한 '발견'은 프로그램의 질이나

Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
Scaling Twitter: Making Twitter 10000 Percent Faster

1. Clone your fork:

git clone [email protected]:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream

	ANSI_X3.4-1968 ANSI_X3.4-1986 ASCII CP367 IBM367 ISO-IR-6 ISO646-US ISO_646.IRV:1991 US US-ASCII CSASCII
	UTF-8
	ISO-10646-UCS-2 UCS-2 CSUNICODE
	UCS-2BE UNICODE-1-1 UNICODEBIG CSUNICODE11
	UCS-2LE UNICODELITTLE
	ISO-10646-UCS-4 UCS-4 CSUCS4
	UCS-4BE
	UCS-4LE
	UTF-16
	UTF-16BE

	/*
	A Tour of Go: page 44
	http://tour.golang.org/#44

	Exercise: Loops and Functions

	As a simple way to play with functions and loops, implement the square root function using Newton's method.

	In this case, Newton's method is to approximate Sqrt(x) by picking a starting point z and then repeating: z - (zz - x) / (2 z)

	package main

	import (
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	)

	/* *******************************************
	// LICENSE INFORMATION
	// The code, "Detecting Smartphones Using PHP"
	// by Anthony Hand, is licensed under a Creative Commons
	// Attribution 3.0 United States License.
	//
	// Updated 01 March 2010 by Bryan J Swift
	// - Remove un-needed if statements instead just returning the boolean
	// inside the if clause
	//