Pradeep Kumar Mishra pkmishra

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

Youtube channels:

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?

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

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.

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

	var USERS = {
	protecteddir: [{
	username: 'user',
	password: 'pass',
	}],
	};

	//Response when auth is not valid.
	var response401 = {
	statusCode: 401,

	#!/bin/bash

	usage() {
	cat << EOF
	Usage: $0 [OPTION]... COMMAND
	Execute the given command in a way that works safely with cron. This should
	typically be used inside of a cron job definition like so:
	* * * * * $(which "$0") [OPTION]... COMMAND

	Arguments:

	/**
	* This client extends the ususal SoapClient to handle mtom encoding. Due
	* to mtom encoding soap body has test apart from valid xml. This extension
	* remove the text and just keeps the response xml.
	*/

	class MTOMSoapClient extends SoapClient {
	public function __doRequest($request, $location, $action, $version, $one_way = 0) {
	$response = parent::__doRequest($request, $location, $action, $version, $one_way);
	//if resposnse content type is mtom strip away everything but the xml.