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tdg5 / the_cats_meow.rb
Last active August 29, 2015 13:55
Mildly insane examples of overriding the reader method of the ActiveSupport provided :class_attribute directly and as part of an ActiveSupport::Concern.
class Feline
class_attribute :meow
self.meow = '<feline-silence/>'
def self.meow
raise NotImplementedError
end
end
class MetaCat < Feline
// Requires angular-mock
describe('$templateCache service', function() {
var service,
httpBackend,
template = "<div>test</div>",
templateResponse = '<script id="test" type="text/ng-template">' + template + '</script>';
@tdg5
tdg5 / acpi_wakeup
Created June 5, 2014 13:13
init.d script to manage acpi wakeup devices for Surface Pro
#! /bin/sh
### BEGIN INIT INFO
# Provides: acpi_wakeup
# Required-Start: $remote_fs $syslog $all
# Required-Stop: 0 6
# Default-Start: 1 2 3 4 5
# Default-Stop:
# Short-Description: Disable acpi wakeup for given devices
### END INIT INFO
@tdg5
tdg5 / lsmod
Created June 5, 2014 13:16
lsmod from my Surface Pro on Ubuntu 14.04
Module Size Used by
btusb 32412 0
snd_hda_codec_hdmi 46207 1
snd_hda_codec_realtek 61438 1
hid_sensor_accel_3d 13221 0
hid_sensor_als 13123 0
hid_sensor_magn_3d 13209 0
hid_sensor_gyro_3d 13209 0
hid_sensor_trigger 12916 4 hid_sensor_gyro_3d,hid_sensor_accel_3d,hid_sensor_als,hid_sensor_magn_3d
joydev 17381 0
@tdg5
tdg5 / lexical_scope_is_weird.rb
Created January 15, 2015 20:52
Lexical Scope Is Weird
module LexicalScope
SCOPED_CONSTANT = [:lexical_scope].freeze
def scoped_value
value = defined?(super) ? super.dup : []
value.concat(SCOPED_CONSTANT)
end
end
module IsWeird
@tdg5
tdg5 / string_split_benchmark.rb
Last active August 29, 2015 14:15
String#split is much, much faster without any arguments
require 'benchmark/ips'
number = "731671765313306249192251196744265747423553491949349698352031277450632623957831801698480186947885184385861560789112949495459501737958331952853208805511125406987471585238630507156932909632952274430435576689664895044524452316173185640309871112172238311362229893423380308135336276614282806444486645238749303589072962904915604407723907138105158593079608667017242712188399879790879227492190169972088809377665727333001053367881220235421809751254540594752243525849077116705560136048395864467063244157221553975369781797784617406495514929086256932197846862248283972241375657056057490261407972968652414535100474821663704844031998900088952434506585412275886668811642717147992444292823086346567481391912316282458617866458359124566529476545682848912883142607690042242190226710556263211111093705442175069416589604080719840385096245544436298123098787992724428490918884580156166097919133875499200524063689912560717606058861164671094050775410022569831552000559357297257163626956188267042825248360082325753042
@tdg5
tdg5 / pe_08_with_simple.rb
Created February 18, 2015 11:19
Project Euler #08 with simpler alternative
# Project Euler #8 - Largest product in a series
# https://projecteuler.net/problem=8
#
# Find the thirteen adjacent digits in the 1000-digit number that have the
# greatest product. What is the value of this product?
def largest_product_in_series(series, adjacency_length = 13)
factors = []
largest_product = 0
current_product = 1
@tdg5
tdg5 / tagged_console.rb
Created February 25, 2015 18:16
alternative means of adding tagging to rails console comand
# Add to require from script/rails before rails/commands is required.
if /^c(?:onsole)?$/ === ARGV[0] && index = ARGV.index { |arg| /-(t|-tag)/ === arg }
# Intercept the arguments vector before it is passed to Rails::Console.
# Drop the -t or --tag arg and following argument which should be the tag
# itself. That's all that should need to be done because the tag will show up
# in the command name given how the command was invoked.
ARGV.slice!(index, 2)
end
@tdg5
tdg5 / prime_finder.rb
Last active August 29, 2015 14:16
Sieve generated prime finder
class PrimeFinder
attr_reader :limit, :primes
def initialize(limit)
@limit = limit
@primes = []
generate_primes!(limit)
end
def prime?(candidate)
@tdg5
tdg5 / eagerly_losing_logic.rb
Created March 1, 2015 03:07
Errors during eager evaluation cause result of logical expression to be lost
or_result = nil
begin
or_result = true | Seriously(this(is(valid(Ruby!))))
rescue NameError
puts "NameError :("
end
# Name Error :(
or_result
# => nil