smarter

Generalized Algebraic Data Types in Scala

Basic GADTs

Here's an ADT which is not a GADT, in Haskell:

data Expr = IntExpr Int | BoolExpr Bool

ursuad

Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic

Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000

... wait a minute ...

lachezar

/*
 * Copyright (C) 2015 Jared Rummler <jared.rummler@gmail.com>
 *
 * 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

ejhayes

Install Prose Theme

This is based on: http://stevelosh.com/blog/2010/02/my-extravagant-zsh-prompt/

How to get up and going

• Install iTerm2 from here: http://www.iterm2.com/#/section/downloads
• Import better colors into profile of iTerm2 (Preferences > Profile > Default > Colors > Load Presets > Import)

jfrazee

// Just an ordinary function
def sum(x: Int, y: Int, z: Int) = x + y + z

// A tuple of arguments
val args = (1, 2, 3)

// Convert the function to a (partial) Function, which has a tupled method
// that takes tuples up to arity 5
(sum _).tupled(args)

lachezar

// ==UserScript==
// @name          UTM param stripper
// @author        Paul Irish
// @namespace     http://github.com/paulirish
// @version       1.1
// @description   Drop the UTM params from a URL when the page loads.
// @extra         Cuz you know they're all ugly n shit.
// @include       http://*
// ==/UserScript==

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

scottatron

This runs provides an .optim job for dragonfly and also adds the .optim job into .thumb

This requires you have the 'image_optim' gem and it's dependencies.

lukaszkorecki

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Ansi 0 Color</key>
	<dict>
		<key>Blue Component</key>
		<real>0.0</real>
		<key>Green Component</key>
		<real>0.0</real>

bzerangue

<?xml version="1.0" encoding="UTF-8"?>
<yahoo-weather-codes>
  <code number="0" description="tornado"/>
  <code number="1" description="tropical storm"/>
  <code number="2" description="hurricane"/>
  <code number="3" description="severe thunderstorms"/>
  <code number="4" description="thunderstorms"/>
  <code number="5" description="mixed rain and snow"/>
  <code number="6" description="mixed rain and sleet"/>
  <code number="7" description="mixed snow and sleet"/>