Dan Ott danott

Ruby on Rails Interview Questions

Q1.

What is the difference between Ruby's Hash and ActiveSupport's HashWithIndifferentAccess?

Answer

The Hash class in Ruby's core library retrieves values by doing a standard ==

The introduction to Reactive Programming you've been missing

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.

Emoji Spec

Tired of the same, dull rspec output? liven it up with some emoji!

Below are the sets presently available, and their corresponding id. if you don't set an ID, one will be randomly chosen every run. Emoji icons may not render in certain terminals.

(pass, fail, pending)

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

Disabling frameworks in Rails 3+###

Replace in your config/application.rb

require "rails/all"

with:

require "rails"

#Mac OS X

Mensch coding font

	set background=dark
	highlight clear
	if exists("syntax_on")
	syntax reset
	endif

	let colors_name = "comments"

	" First set Normal to regular white on black text colors:
	hi Normal ctermfg=LightGray ctermbg=Black guifg=#dddddd guibg=Black

	Letterpress Dark:
	#313131,#242424,#00BAFF,#FFFFFF,#187598,#FFFFFF,#00BAFF,#FF432F

	Monument Valley:
	#0D7E83,#076570,#F79F66,#FFFFFF,#D37C71,#FFFFFF,#F79F66,#F15340

	Threes:
	#FEFFFF,#CBE1DB,#66CCFF,#FFFFFF,#FFCC66,#494766,#FF6680,#FF6680

	<IfModule mod_fastcgi.c>
	AddHandler fastcgi-script .fcgi
	</IfModule>
	<IfModule mod_fcgid.c>
	AddHandler fcgid-script .fcgi
	</IfModule>

	Options +FollowSymLinks +ExecCGI

	RewriteEngine On

	# Convert any YouTube video into an audio file you can listen to on the go, using:
	# http://rg3.github.com/youtube-dl/

	{ ~ } > brew install ffmpeg

	{ ~ } > wget https://raw.github.com/rg3/youtube-dl/2012.02.27/youtube-dl
	{ ~ } > chmod u+x youtube-dl

	# Pick which video format you want to download.. (use any YT video link)
	{ ~ } > ./youtube-dl -s -F http://www.youtube.com/watch?v=vT1KmTQ-1Os