hwigyum kim breakstorm

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Backup MySQL to Amazon S3

This is a simple way to backup your MySQL tables to Amazon S3 for a nightly backup - this is all to be done on your server :-)

Sister Document - Restore MySQL from Amazon S3 - read that next

1 - Install s3cmd

this is for Centos 5.6, see http://s3tools.org/repositories for other systems like ubuntu etc

React introduced shallow rendering in 0.13. This is an excellent feature that I wish was included earlier in React. It aims to solve the problem of unit testing components without going through a real, or jsdom mocked, DOM. I couldn't find any info online about what lifecycle events it actually fires. So I did some testing of my own. To reproduce, put component.js and test.js into a folder and run node test.js.

TLDR; shallow rendering only invokes the following lifecycle hooks (in order):

getDefaultProps
getInitialState
componentWillMount stops here until re-render
componentWillReceiveProps
shouldComponentUpdate
componentWillUpdate

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

NVM(Node Version Manager) Quick Start

맥OS에서 NVM 사용하기

NVM 설치

1. 설치

$ sudo curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash

	// Module dependencies

	var express = require('express'),
	mysql = require('mysql');

	// Application initialization

	var connection = mysql.createConnection({
	host : 'localhost',
	user : 'root',

	# first:
	lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom \| while read f; do sudo rm /usr/local/${f}; done
	sudo rm -rf /usr/local/lib/node /usr/local/lib/node_modules /var/db/receipts/org.nodejs.*

	# To recap, the best way (I've found) to completely uninstall node + npm is to do the following:

	# go to /usr/local/lib and delete any node and node_modules
	cd /usr/local/lib
	sudo rm -rf node*

	[
	{
	"city": "New York",
	"growth_from_2000_to_2013": "4.8%",
	"latitude": 40.7127837,
	"longitude": -74.0059413,
	"population": "8405837",
	"rank": "1",
	"state": "New York"
	},

	Lifecycle: \| Update:
	Mounting and Unmounting \| New Props or State
	--------------------------------+-----------------------------------
	\|
	getDefaultProps() \| componentWillReceiveProps()*
	\|
	getInitialState() \| shouldComponentUpdate()
	\|
	componentWillMount() \| componentWillUpdate()
	\|

	===============================================================================
	= 빔 길잡이 (VIM Tutor) 에 오신 것을 환영합니다 - Version 1.5 =
	===============================================================================

	빔(Vim)은 이 길잡이에서 다 설명할 수 없을 만큼 많은 명령을 가진
	매우 강력한 편집기입니다. 이 길잡이는 빔을 쉽게 전천후 편집기로 사용할
	수 있도록 충분한 명령에 대해 설명하고 있습니다.

	이 길잡이를 떼는 데에는 실습하는 데에 얼마나 시간을 쓰는 가에 따라서
	25-30 분 정도가 걸립니다.