MichaelDimmitt

Setting Up Clojure on OS X

I spent a lot of time trying to find a pretty optimal (for me) setup for Clojure… at the same time I was trying to dive in and learn it. This is never optimal; you shouldn't be fighting the environment while trying to learn something.

I feel like I went through a lot of pain searching Google, StackOverflow, blogs, and other sites for random tidbits of information and instructions.

This is a comprehensive "what I learned and what I ended up doing" that will hopefully be of use to others and act as a journal for myself if I ever have to do it again. I want to be very step-by-step and explain what's happening (and why) at each step.

Step 1: Getting Clojure (1.3)

5 entertaining things you can find with the GitHub Search API

Let's have some command-line fun with curl, [jq][1], and the [new GitHub Search API][2].

Today we're looking for:

The hottest repositories created in the last week.
The oldest user accounts with zero followers. (So sad.)
Issue trends by language.
Clojure projects defying convention.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!

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Here is a high level overview for what you need to do to get most of an Android environment setup and maintained.

Prerequisites (for Homebrew at a minimum, lots of other tools need these too):

XCode is installed (via the App Store)
XCode command line tools are installed (xcode-select --install will prompt up a dialog)
Java

Install Homebrew:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

Microcontroller's suitable for robotics projects

Arduino
The Handy Board
Handyboard Hacker's Resource Guide
[The Handy Cricket](http://www.handyboard.com/cricket" ADD_DATE="908235315" LAST_VISIT="935879243" LAST_MODIFIED="908235252)
Blackfin Handyboard (in Development)
OOPic: Object-Oriented Programmable Integrated Circuit
Parallax BASIC Stamp Microcontrollers
Sumo11 Robot Controller
IntelliBrain Robot Controller

tmux Cheat Sheet

Table of Contents

General Usage
Shortcuts
Commands
Scripting tmux
Configuring tmux

	>> IF = -> b { b }
	=> #<Proc:0x007fb4e4049cc8 (lambda)>

	>> LEFT = -> p { p[-> x { -> y { x } } ] }
	=> #<Proc:0x007fb4e403d680 (lambda)>

	>> RIGHT = -> p { p[-> x { -> y { y } } ] }
	=> #<Proc:0x007fb4e4028ff0 (lambda)>

	>> IS_EMPTY = LEFT

	/**
	* Like, basically PERFECT scrollbars
	*/

	/*
	It's pure CSS.
	Since a quick google search will confirm people going crazy about Mac OS Lion scrollbars...
	this has no fade-out effect.

	In Mac OS Lion, the lowest common denominator is always showing scrollbars by a setting.

	global.escapeshell = function(cmd) { //http://stackoverflow.com/a/7685469
	return '"'+cmd.replace(/(["\s'$`\\])/g,'\\$1')+'"';
	};

	global.say = function(string)
	{
	var os = require('os');

	if (os.type() == 'Darwin')
	{

	# Elixir has lazily evaluated enumerable objects that allow you
	# to work with enumerable objects like lists either only as needed
	# or infinitely.

	# Start up iex to play around
	$ iex

	# Typical enumeration is done eagerly where the result is computed ASAP
	iex> Enum.map(1..10, fn i -> i * 2 end)
	[2, 4, 6, 8, 10, 12, 14, 16, 18, 20]