Danar Widi widiu7omo

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?

JPG:
$ brew install jpegoptim
$ find . -name "*.jpg" -exec jpegoptim -m80 -o -p --strip-all {} \;

- PNG:
$ brew install optipng
$ find . -name "*.png" -exec optipng -o7 {} \;

	import random

	population = 200
	generations = 0
	mutation = 0.01

	alphabet = "abcdefghijklmnopqrstuvwxyz! "
	target = "subscribe to howcode!"
	output = ""
	data = []

	import android.content.Context
	import android.content.res.Resources
	import android.util.DisplayMetrics

	/**
	* Provides utilities for metrics.
	*
	* Original at:
	* @see <a href="https://stackoverflow.com/a/9563438/8877070">stack overflow answer</a>
	*

	fun isEmailValid(email: String): Boolean {
	return Pattern.compile(
	"^(([\\w-]+\\.)+[\\w-]+\|([a-zA-Z]\|[\\w-]{2,}))@"
	+ "((([0-1]?[0-9]{1,2}\|25[0-5]\|2[0-4][0-9])\\.([0-1]?"
	+ "[0-9]{1,2}\|25[0-5]\|2[0-4][0-9])\\."
	+ "([0-1]?[0-9]{1,2}\|25[0-5]\|2[0-4][0-9])\\.([0-1]?"
	+ "[0-9]{1,2}\|25[0-5]\|2[0-4][0-9]))\|"
	+ "([a-zA-Z]+[\\w-]+\\.)+[a-zA-Z]{2,4})$"
	).matcher(email).matches()
	}

	1. Flashing the recovery image:
	fastboot flash recovery recovery.img

	2. Flash the kernel and bootloader:
	fastboot flash boot boot.img


	3. Erase a partition:
	fastboot erase cache

	<IfModule mod_rewrite.c>
	<IfModule mod_negotiation.c>
	Options -MultiViews
	</IfModule>

	RewriteEngine On

	# Redirect Trailing Slashes If Not A Folder...
	RewriteCond %{REQUEST_FILENAME} !-d
	RewriteRule ^(.*)/$ /$1 [L,R=301]

	Backup:
	docker exec -t -u postgres your-db-container pg_dumpall -c > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql

	Restore:
	cat your_dump.sql \| docker exec -i your-db-container psql -Upostgres

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Bootstrap Table Checkbox Select All and Cancel</title>
	<link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
	</head>
	<body>
	<h2>Bootstrap Table Checkbox Select All and Cancel</h2>
	<table class="table table-striped">

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_main);
	Button button = (Button) findViewById(R.id.button);
	button.setOnClickListener(new View.OnClickListener() {
	@Override
	public void onClick(View v) {
	openDialog();
	}