Benjamin Gudehus hastebrot

Deprecated. See https://www.polymer-project.org/articles/unit-testing-elements.html for the latest version.

Unit Testing Polymer Elements

Note: this guide is a work-in-progress and will be added to the Polymer docs when it's ready. We have updated <seed-element> to include unit tests and this guide has been moved to Google docs. Expect a version on the Polymer site before the end of September.

After spending days working on your <super-awesome> Polymer element, you’re finally ready to share it with the rest of the world. You add the code for using it to your demo, iterate on it over time and come back to it one day when..uh oh. The demo broke because something has gone horribly wrong. Suddenly, <super-awesome> isn’t starting to look so great. Now you’re stuck trying to backtrack through your commit log to figure out how you broke the code. You’re not going to have a fun time.

If you’ve been working on the front-end for a while, even if you haven’t really played with Polymer elements before, this s

Prolog

Google Chrome Developers says:

The new WOFF 2.0 Web Font compression format offers a 30% average gain over WOFF 1.0 (up to 50%+ in some cases). WOFF 2.0 is available since Chrome 36 and Opera 23.

Some examples of file size differences: WOFF vs. WOFF2

TTF to WOFF2 converting

http://www.fontsquirrel.com/tools/webfont-generator

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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.

This script is NOT MAINTAINED

This snippet of code was posted in 2014 and slightly revised in 2016 and 2017. It was more of a quick'n'dirty script than a polished tool. It is made only for Linux and in Python 2, which has since become outdated.

I currently do not use it, and I suggest you avoid it as well. Please do not expect support for using this script.

🔥 If you need an alternative, @glaucocustodio has kindly suggested EasyVPN in this comment.

The rest of the README is left for historical purposed.

TypeScript and currying

In functional programming you often want to apply a function partly. A simple example is a function add. It would be nice if we could use add like:

var res2 = add(1, 3); // => 4

var add10To = add(10);
var res = add10To(5); // => 15

	# Original Rails controller and action
	class EmployeesController < ApplicationController
	def create
	@employee = Employee.new(employee_params)

	if @employee.save
	redirect_to @employee, notice: "Employee #{@employee.name} created"
	else
	render :new
	end

	import java.util.concurrent.TimeUnit;
	import java.util.concurrent.atomic.AtomicInteger;
	import javafx.application.Application;
	import javafx.geometry.Point2D;
	import javafx.geometry.Pos;
	import javafx.scene.CacheHint;
	import javafx.scene.Group;
	import javafx.scene.Scene;
	import javafx.scene.layout.Region;
	import javafx.scene.layout.StackPane;

	trait Tree
	data object Empty : Tree
	data class Leaf(val value: Int) : Tree
	data class Node(val left: Tree, val right: Tree) : Tree

	fun max(x:Int, y:Int):Int = if (x > y) x else y

	fun depth(t: Tree): Int = when (t) {
	is Empty -> 0
	is Leaf -> 1

	// Copyright 2014 Cognitect. All Rights Reserved.
	//
	// 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
	// distributed under the License is distributed on an "AS-IS" BASIS,

	// Copyright 2014 Cognitect. All Rights Reserved.
	//
	// 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
	// distributed under the License is distributed on an "AS-IS" BASIS,