jdegoes

Applied Functional Programming with Scala - Notes

Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

pfn

package iota.sample

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.graphics.drawable.Animatable
import android.widget._
import android.view.ViewGroup.LayoutParams._
import iota._

class MainActivity extends AppCompatActivity { self =>

etaty

package utils

import java.nio.ByteBuffer

import cats.data.Xor
import io.circe.Json
import play.api.http.LazyHttpErrorHandler
import play.api.http.Status._
import play.api.libs.iteratee.{Iteratee, Traversable}
import play.api.mvc.BodyParsers.parse._

akras14

Git Cheat Sheet

Commands

Getting Started

git init

or

mrbobbytables

#!/bin/bash

set -o errexit -o nounset -o pipefail

usage() {
cat << EOF
USAGE:
init-boot2docker.sh -p [path] -u [uid] -g [gid]
-p    Path to the working directory you wish to mount.
-u    The uid you wish to mount the working directory as.

chrisbanes

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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

staltz

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.

---

pfn

import android.Keys._

android.Plugin.androidBuild

name := "project-with-lib-projects"

unmanagedClasspath in Compile <<= ( baseDirectory
                                  , unmanagedClasspath in Compile) map {
  (base,cp) =>
  val ignores = Set("android-support-v4.jar", "guava-14.0.1.jar")

pfn

import sbt._

import android.ArbitraryProject

object SampleBuild extends Build {
  import android.Keys._
  import android.Dependencies.LibraryProject

  // we're gonna pull tag android-sdk-support_r11 from the support repo
  val supportGit = uri("https://android.googlesource.com/" +

brandonb927

#!/bin/sh

###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx