Ivan Kuznetsov Jeiwan

So you're writting a twitterbot and you need to authorize your application to post to the account. You need an access token and secret for the account you're posting to. If the posting account is the same account that owns the application, no problem, you just push the button on your application's settings page to make the keys. But if you want to post to a different twitter account, there's no UI on apps.twitter.com to authorize it. So I made this bare-minimum node server to run through the authorization process. There's probably a much better way to do this, so please let me know what that way is!

ignore this and go down to the comments for better solutions

You'll need a server with node.js!
Make sure your application has a callback URL specified in its settings page, even if it's just a placeholder. If there's nothing in the callback URL slot, this method of authorization won't work.
In authorize.js, fill in your application's consumer key and secret, and the domain on which you'll be running th

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Identifying Arbitrage Opportunities with Graphs

Introduction

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

	# paths
	app_path = "/home/deployer/qna"
	working_directory "#{app_path}/current"
	pid "#{app_path}/current/tmp/pids/unicorn.pid"

	# listen
	listen "#{app_path}/shared/tmp/sockets/unicorn.qna.sock", backlog: 64

	# logging
	stderr_path "log/unicorn.stderr.log"

	/*
	* Copyright 2015 Databricks, Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License"); you may
	* not use this file except in compliance with the License. You may obtain
	* a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

	gem 'rails', '4.2.1' # prob works on others, too, but this is the one I figured it out on
	require "rails"
	require 'active_record'
	require 'action_controller/railtie'
	require 'action_view/railtie'

	# ===== Configuration =====
	Rails.logger = ActiveRecord::Base.logger = Logger.new $stdout
	ActiveSupport::LogSubscriber.colorize_logging = false

	"""
	Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
	BSD License
	"""
	import numpy as np

	# data I/O
	data = open('input.txt', 'r').read() # should be simple plain text file
	chars = list(set(data))
	data_size, vocab_size = len(data), len(chars)

	var mining_threads = 1

	function checkWork() {
	if (eth.getBlock("pending").transactions.length > 0) {
	if (eth.mining) return;
	console.log("== Pending transactions! Mining...");
	miner.start(mining_threads);
	} else {
	miner.stop(0); // This param means nothing
	console.log("== No transactions! Mining stopped.");

	sudo apt-get update
	sudo apt-get install -y apt-transport-https ca-certificates
	sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
	echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" \| sudo tee /etc/apt/sources.list.d/docker.list
	sudo apt-get update
	sudo apt-get install -y linux-image-extra-$(uname -r) linux-image-extra-virtual
	sudo apt-get install -y docker-engine
	sudo service docker start

	sudo docker pull php:5.6-apache