Andrei Andreev andreimoment

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?

type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

Gigabyte Z170X-* (skylake) Motherboards - duplicate boot entries UEFI BIOS bug, TAKE 2

Hello. This is a bug report for certain Gigabyte Skylake motherboard customer(s). It tries to explain simply about this duplicate boot entries problem.

Symptom

Every time a new boot (or reboot), the boot menu list changes, and extra 'UEFI: ' boot entry is added
The new entrie(s) are duplicated of other entries. And more than the 'normal'. Eg. 3x same entry (or higher).

Below is the list of modern JS frameworks and almost frameworks – React, Vue, Angular, Ember and others.

All files were downloaded from https://cdnjs.com and named accordingly. Output from ls command is stripped out (irrelevant stuff)

As-is (minified)

$ ls -lhS
566K Jan 4 22:03 angular2.min.js

if !database: wget + grep

The Federal Aviation Administration is posting PDFs of the Section 333 exemptions that it grants, i.e. the exemptions for operators who want to fly drones commercially before the FAA finishes its rulemaking. A journalist wanted to look for exemptions granted to operators in a given U.S. state. But the FAA doesn't appear to have an easy-to-read data file to use and doesn't otherwise list exemptions by location of operator.

However, since their exemptions page is just one giant HTML table for listing the PDFs, we can just use wget to fetch all the PDFs, run pdftotext on each file, and then [grep](https://medium.com/@rualthanzauva/grep-was-a-private-command-of-m

Ruby Sequel TinyTDS MS SQL Example

A sample script for connecting to MS SQL Server database using Sequel ORM with the TinyTDS (FreeTDS) adapter.

#!/usr/bin/env ruby

require 'sequel'
require 'tiny_tds'

	http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
	http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

	#payload: [{"kind"=>"person"}]
	Segment.where("payload @> ?", [{kind: "person"}].to_json)

	#data: {"interest"=>["music", "movies", "programming"]}
	Segment.where("data @> ?", {"interest": ["music", "movies", "programming"]}.to_json)
	Segment.where("data #>> '{interest, 1}' = 'movies' ")
	Segment.where("jsonb_array_length(data->'interest') > 1")

	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.1/animate.min.css">
	<style>
	.revealOnScroll{opacity:0;}
	</style>

	# (I recommend understanding the basics of this first: http://sequel.jeremyevans.net/rdoc/files/doc/object_model_rdoc.html)

	# Extending the underlying dataset (http://sequel.jeremyevans.net/rdoc/files/README_rdoc.html#label-Extending+the+underlying+dataset)

	# The recommended way to implement table-wide logic by defining methods on the dataset using dataset_module:

	class Post < Sequel::Model
	dataset_module do
	def posts_with_few_comments
	where{num_comments < 30}

	/* iPhone 6 landscape */
	@media only screen and (min-device-width: 375px)
	and (max-device-width: 667px)
	and (orientation: landscape)
	and (-webkit-min-device-pixel-ratio: 2)
	{ }

	/* iPhone 6 portrait */
	@media only screen
	and (min-device-width: 375px)