Sylvia sylvia43

10 Scala One Liners to Impress Your Friends

Here are 10 one-liners which show the power of scala programming, impress your friends and woo women; ok, maybe not. However, these one liners are a good set of examples using functional programming and scala syntax you may not be familiar with. I feel there is no better way to learn than to see real examples.

Updated: June 17, 2011 - I'm amazed at the popularity of this post, glad everyone enjoyed it and to see it duplicated across so many languages. I've included some of the suggestions to shorten up some of my scala examples. Some I intentionally left longer as a way for explaining / understanding what the functions were doing, not necessarily to produce the shortest possible code; so I'll include both.

1. Multiple Each Item in a List by 2

The map function takes each element in the list and applies it to the corresponding function. In this example, we take each element and multiply it by 2. This will return a list of equivalent size, compare to o

The Scammiest Scam To Yet Anonymity Scam

I'm still holding out for this being a hoax, a big joke, and that they're going to cancel the kickstarter any minute. It'd be quite the cute "lessons learned" about anonymity scams. However, I will be treating it from here on out as a genuine scam. (As of May 2nd, the kickstarter has been cancelled, after the strangest attempt to reply to this imaginable. Good riddance.)

This absolutely ridiculous thing was brought to my attention by a friend and since it was late at night I thought I must be delirious in how absurdly over the top fake it seemed. So I slept on it, woke up, and found that it had gotten a thousand dollars more funding and was every bit as flabbergasting as I thought it was.

Since I realize that not everyone has spent their entire lives studying computers – and such people are the targets of such scams –

	// ==UserScript==
	// @name Naviance Sort "Colleges I'm Applying To"
	// @namespace http://shreyasr.me/
	// @version 1.0
	// @description Allow the user to sort Naviance's "Colleges I'm Applying To"
	// @author Shreyas
	// @match https://connection.naviance.com/family-connection/colleges/application/
	// @grant none
	// ==/UserScript==

	#!/bin/bash
	# Based on http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html
	# Requires ffmpeg

	filename="${1%.*}"
	palette="/tmp/palette.png"
	filters="scale=320:-1:flags=lanczos"

	ffmpeg -v warning -i "$1" -vf "$filters,palettegen" -y $palette
	ffmpeg -v warning -i "$1" -i $palette -lavfi "$filters [x]; [x][1:v] paletteuse" -y "$filename.gif"

	# 2048.py
	# Written in python / pygame by DavidSousaRJ - [email protected]
	# License: Creative Commons
	# Sorry about some comments in portuguese!
	import os
	import sys
	import pygame
	from pygame.locals import *
	from random import randint

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Random;
	import java.util.function.Function;
	import java.util.function.Predicate;
	import java.util.stream.Collectors;

	public class Tests{
	static Random rand = new Random();

	/**
	* Fancy ID generator that creates 20-character string identifiers with the following properties:
	*
	* 1. They're based on timestamp so that they sort after any existing ids.
	* 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
	* 3. They sort lexicographically (so the timestamp is converted to characters that will sort properly).
	* 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the
	* latter ones will sort after the former ones. We do this by using the previous random bits
	* but "incrementing" them by 1 (only in the case of a timestamp collision).
	*/

	/*
	* Copyright (c) 2015 Fran Montiel
	*
	* 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

	import java.io.IOException;
	import java.net.URLClassLoader;
	import java.nio.file.Files;
	import java.nio.file.Paths;
	import java.nio.file.Path;

	/**
	* Example demonstrating a ClassLoader leak.
	*
	* <p>To see it in action, copy this file to a temp directory somewhere,