Shern Shiou Tan shernshiou

When should you use DateTime and when should you use Time?

It's a common misconception that [William Shakespeare][1] and [Miguel de Cervantes][2] died on the same day in history - so much so that UNESCO named April 23 as [World Book Day because of this fact][3]. However because England hadn't yet adopted [Gregorian Calendar Reform][4] (and wouldn't until [1752][5]) their deaths are actually 10 days apart. Since Ruby's Time class implements a [proleptic Gregorian calendar][6] and has no concept of calendar reform then there's no way to express this. This is where DateTime steps in:

>> shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND)
=> Tue, 23 Apr 1616 00:00:00 +0000
>> cervantes = DateTime.iso8601('1616-04-23', Date::ITALY)
=> Sat, 23 Apr 1616 00:00:00 +0000

Unmuting Twitch VODs

As you know, Twitch has made a weird decision to mute VODs if it finds copyrighted content in videos.

Here's how to enjoy VODs without this annoying mute feature.

Install Fiddler (tested on 4.4.9.2 on Windows).
Enable HTTPS decryption. If you are using Firefox, you will need to do this.
Rules -> Customize Rules...
Paste the following code in the OnBeforeResponse method:

Frontend Development

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This page is not maintained anymore, please update your bookmarks.

	var url = 'http://www.pdf995.com/samples/pdf.pdf';
	var fileName = 'pdf.pdf';
	var xhr = new XMLHttpRequest();
	xhr.open('GET', url, true);
	xhr.responseType = 'blob';

	xhr.onprogress = function(pe) {
	console.log('progress');
	if (pe.lengthComputable) {
	console.log((pe.loaded / pe.total) * 100);

	""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """
	import numpy as np
	import cPickle as pickle
	import gym

	# hyperparameters
	H = 200 # number of hidden layer neurons
	batch_size = 10 # every how many episodes to do a param update?
	learning_rate = 1e-4
	gamma = 0.99 # discount factor for reward

	import React, { Component } from 'react'
	import { StyleSheet } from 'react-native'
	import Icon from 'react-native-vector-icons/Ionicons'

	export default class NavBar extends Component {
	static propTypes = {
	title: React.PropTypes.string,
	onLeftPress: React.PropTypes.func,
	showDrawer: React.PropTypes.bool
	}

	echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" \| sudo tee /etc/apt/sources.list.d/pgdg.list
	wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc \| sudo apt-key add -
	sudo apt-get update
	sudo apt-get install postgresql-9.3 postgresql-server-dev-9.3 postgresql-contrib-9.3 -y

	sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"
	sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";'"
	sudo su - postgres -c "service postgresql stop"
	sudo su - postgres -c '/usr/lib/postgresql/9.3/bin/pg_upgrade -b /usr/lib/postgresql/9.1/bin -B /usr/lib/postgresql/9.3/bin -d /var/lib/postgresql/9.1/main/ -D /var/lib/postgresql/9.3/main/ -O "-c config_file=/etc/postgresql/9.3/main/postgresql.conf" -o "-c config_file=/etc/postgresql/9.1/main/postgresql.conf"'