Whien_Liou madeinfree

原文 Assembler / なぜx86ではMBRが"0x7C00"にロードされるのか？(完全版)

感謝 descent 大大分享本文，隨便看隨便譯。本文不是逐句譯，同時也不是這方面的專家 (不管是語言或技術)，用語不一或缺漏錯誤在所難免，歡迎自行 fork 修正指教

誰適合看本文?

對 x86 架構與組合語言有基礎認識，以及從 MBR 到載入 OS 這一段過程有興趣的人 (還有談到中斷向量或 INT xxx 時不會一臉茫然的人)

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Homebrew
Mountain Lion -> High Sierra

Install

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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.

Get Git log in JSON format

git log --pretty=format:'{%n  "commit": "%H",%n  "abbreviated_commit": "%h",%n  "tree": "%T",%n  "abbreviated_tree": "%t",%n  "parent": "%P",%n  "abbreviated_parent": "%p",%n  "refs": "%D",%n  "encoding": "%e",%n  "subject": "%s",%n  "sanitized_subject_line": "%f",%n  "body": "%b",%n  "commit_notes": "%N",%n  "verification_flag": "%G?",%n  "signer": "%GS",%n  "signer_key": "%GK",%n  "author": {%n    "name": "%aN",%n    "email": "%aE",%n    "date": "%aD"%n  },%n  "commiter": {%n    "name": "%cN",%n    "email": "%cE",%n    "date": "%cD"%n  }%n},'

The only information that aren't fetched are:

%B: raw body (unwrapped subject and body)
%GG: raw verification message from GPG for a signed commit

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Let's Encrypt

Examples of getting certificates from Let's Encrypt working on Apache, NGINX and Node.js servers.

Obtain certificates

I chose to use the manual method, you have to make a file available to verify you own the domain. Follow the commands from running

git clone https://github.com/letsencrypt/letsencrypt
cd letsencrypt

A top-level App component returns <Button /> from its render() method.

What is the relationship between <Button /> and this in that Button’s render()?
Does rendering <Button><Icon /></Button> guarantee that an Icon mounts?
Can the App change anything in the Button output? What and how?

What is React Fiber? And how can I try it out today?

what?

React Fiber is an ongoing reimplementation of React's core algorithm. It is the culmination of over two years of research by the React team.

	/**
	* Convert From/To Binary/Decimal/Hexadecimal in JavaScript
	* https://gist.github.com/faisalman
	*
	* Copyright 2012-2015, Faisalman <[email protected]>
	* Licensed under The MIT License
	* http://www.opensource.org/licenses/mit-license
	*/

	(function(){