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The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

List of Chrome Driver command line arguments

Here is the list of Chrome Driver command line Arguments.

If you are using chrome Driver for Selenium WebDriver or Protractor or …. then these are a handy useful list of command line arguments that can be used.

You may use this to look at the usuage: https://code.google.com/p/chromium/codesearch#chromium/src/chromeos/chromeos_switches.cc

Run chromedriver –help to see command line arguments for your version.

	const puppeteer = require('puppeteer');
	const { defineSupportCode } = require('cucumber')

	defineSupportCode(({ Before, Given, When, Then }) => {
	Before({ timeout: 60 * 1000 }, async function testCase() {
	this.browser = await puppeteer.launch()
	})

	Given('I am on google with puppeteer', { timeout: 60 * 1000 }, async function testCase() {
	this.page = await this.browser.newPage()

	# uses xpath to check for a form element based on the label,
	# instead of using a css selector w/ label_for
	# name should be the complete name in the html page.
	# meaning Title: and not Title

	# find the label that is name. Get the "for" of the label
	# uses the for to check for the input with that as an id

	Then /^I should see a "([^\"])" for "([^\"])"$/ do \|type, name\|
	case type

	package no.vegvesen.kjoretoy.registrering.register.web;

	import javax.persistence.EntityManager;
	import javax.persistence.PersistenceContext;
	import javax.persistence.Table;

	import java.util.List;
	import java.util.stream.Collectors;

	import org.springframework.beans.factory.InitializingBean;