Anay Nayak anaynayak

Monoids in Haskell, an Introduction

Why should programmers care about Monoids? Because Monoids are a common pattern that shows up over and over in programming. And when patterns show up, we can abstract them and leverage work we've done in the past. This allows us to quickly develop solutions on top of proven, stable code.

Add Commutative Property to a Monoid (Commutative Monoid) and you have something that can be executed in parallel. With the end of Moore's Law, parallelism is our only hope to increasing processing speeds.

What follows is what I've learned after studying Monoids. It is hardly complete, but hopefully will prove to be helpful as an introduction for others.

Monoid Lineage

Oh My Fish Plugins

ansible: Ansible development package for Oh My Fish

apt: Short and friendly command wrapper for APT

battery: OS X and Linux compatible battery utilities

brew: Oh My Fish plugin to integrate Homebrew paths into shell.

Rich Hickey on becoming a better developer

Rich Hickey • 3 years ago

Sorry, I have to disagree with the entire premise here.

A wide variety of experiences might lead to well-roundedness, but not to greatness, nor even goodness. By constantly switching from one thing to another you are always reaching above your comfort zone, yes, but doing so by resetting your skill and knowledge level to zero.

Mastery comes from a combination of at least several of the following:

No longer needed! https://twitter.com/trello/status/893213868322902017

So you got a new computer, eh?

Point & click stuff

Xcode

Monokai theme
OF Addon Plugin
Prefs
- Text editing -> indentation -> prefer tabs
- Text editing -> show line numbers, trim whitespace from empty lines

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.

monitoring: what I want

I've recently shifted from a straight engineering job to a job with a "dev/ops" title. What I have discovered in operations land depresses me. The shoemaker's children are going unshod. Operations software is terrible.

What's driving me craziest right now is my monitoring system.

what I have right now

What I have right now is Nagios.

	echo-server-epoll
	echo-server-poll
	talk
	talk.dSYM

	package spark.example

	import org.apache.spark.SparkContext
	import org.apache.spark.SparkContext._
	import org.apache.spark.SparkConf

	object SparkGrep {
	def main(args: Array[String]) {
	if (args.length < 3) {
	System.err.println("Usage: SparkGrep <host> <input_file> <match_term>")

	// ==UserScript==
	// @name Launchpad Download Count
	// @namespace https://gist.github.com/stefansundin/
	// @homepage https://gist.github.com/stefansundin/f9df6c5e0fd184c60709
	// @downloadURL https://gist.github.com/stefansundin/f9df6c5e0fd184c60709/raw/launchpad-download-count.user.js
	// @version 0.3
	// @author Stefan Sundin
	// @description Gets the download count of your Launchpad packages.
	// @icon https://launchpad.net/favicon.ico
	// @match https://launchpad.net/~/+archive/ubuntu/