Christian Panadero PaNaVTEC

Category theory jargon cheat sheet

A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)

I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.

Functor

A functor is something that supports map.

A Brief Tour of the Makepkg Process: What Makes a Pacman Package

Introduction

This is a terse document covering the anatomy of a package built for the pacman package manager.

The following example commands can mostly run verbatim to manually create a

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.

	class ScaleManager {
	constructor(canvas, isMobile) {
	this.canvas = canvas;
	this.mobile = isMobile;

	window.addEventListener('resize', () => {
	this.resize(this.canvas);

	if (this.mobile) {
	if (window.innerWidth < window.innerHeight) {

	/*
	* Copyright (C) 2016 Jeff Gilfelt.
	*
	* 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

	package com.diaoser.tmr.view;

	import android.animation.Animator;
	import android.animation.AnimatorSet;
	import android.animation.ObjectAnimator;
	import android.animation.TimeInterpolator;
	import android.animation.ValueAnimator;
	import android.content.Context;
	import android.graphics.Color;
	import android.graphics.drawable.ColorDrawable;

	buildscript {
	repositories {
	jcenter()
	maven { url 'http://dl.bintray.com/sloy/maven'} //<- only needed while jcenter refresh to the new version
	}

	dependencies {
	classpath 'com.sloydev:dexcountprettify-plugin:0.1.2'
	}
	}

	package com.fewlaps.android.quitnow.base.customview;

	import android.os.Handler;
	import android.view.View;

	/**A simple way to call the common new Handler().postDelayed(..., time);
	*
	* Created by Roc Boronat on 12/12/2014.
	*/
	public class RippleDelayedRunner implements View.OnClickListener {

	def toCamelCase(String string) {
	String result = ""
	string.findAll("[^\\W]+") { String word ->
	result += word.capitalize()
	}
	return result
	}

	afterEvaluate { project ->
	Configuration runtimeConfiguration = project.configurations.getByName('compile')

	<?xml version="1.0" encoding="utf-8"?>
	<resources>

	<!-- google's material design colours from
	http://www.google.com/design/spec/style/color.html#color-ui-color-palette -->

	<!--reds-->
	<color name="md_red_50">#FFEBEE</color>
	<color name="md_red_100">#FFCDD2</color>
	<color name="md_red_200">#EF9A9A</color>