Yneth

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?

Debugging Redis Keyspace Misses

Simply put, a keyspace "MISS" means some piece of data you tried to retrieve from Redis was not there. This usually means that one of the following things happened:

The key expired
They key was renamed
The key was deleted
The key was evicted due to memory pressure
The entire database was flushed
The key was never actually inserted

An experimental change for fast Clojure REPL startup:

Download the JAR: clojure-1.8.0-fast.jar
Launch it via java -jar clojure-1.8.0-fast.jar

The code used to create this JAR is on GitHub.

What's it doing?

It is:

Virtual DOM and diffing algorithm

There was a [great article][1] about how react implements it's virtual DOM. There are some really interesting ideas in there but they are deeply buried in the implementation of the React framework.

However, it's possible to implement just the virtual DOM and diff algorithm on it's own as a set of independent modules.

	#!/bin/bash

	BLUE='\033[0;36m'
	RED='\033[0;31m'
	NC='\033[0m' # No Color

	#based in OWASP wiki

	if [[ -z "$1" \|\| -z "$2" ]]; then
	echo "./tls.sh host directory"

	version: '2'
	services:
	myapp:
	build: .
	container_name: "myapp"
	image: debian/latest
	environment:
	- NODE_ENV=development
	- FOO=bar
	volumes:

	public class JsxViewResolver implements ViewResolver {

	@Setter String prefix = "static/";
	@Setter String suffix = ".js";
	@Setter String indexFile = "/templates/index.html";

	private JReact renderer;
	private MessageFormat format;

	@PostConstruct

	// http://michalbe.blogspot.com.br/2013/03/javascript-less-known-parts-bitwise.html
	// http://jsperf.com/bitwise-vs-math-object
	// http://united-coders.com/christian-harms/results-for-game-for-forfeits-and-the-winner-is/
	// https://mudcu.be/journal/2011/11/bitwise-gems-and-other-optimizations/
	// https://dreaminginjavascript.wordpress.com/2009/02/09/bitwise-byte-foolish/
	// http://jsperf.com/math-min-max-vs-ternary-vs-if/24

	"use strict";

	var PI = Math.PI;

	tcpdump advanced filters
	========================

	Sebastien Wains <sebastien -the at sign- wains -dot- be>
	http://www.wains.be

	$Id: tcpdump_advanced_filters.txt 36 2013-06-16 13:05:04Z sw $


	Notes :

Yneth

Effective Engineer - Notes

What's an Effective Engineer?

Debugging Redis Keyspace Misses

Contents

Virtual DOM and diffing algorithm