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Volodymyr Zhukov pironim

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  • Kyiv, Ukraine
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@pironim
pironim / capybara cheat sheet
Last active October 5, 2015 16:18 — forked from zhengjia/capybara cheat sheet
capybara cheat sheet
=Navigating=
visit('/projects')
visit(post_comments_path(post))
=Clicking links and buttons=
click_link('id-of-link')
click_link('Link Text')
click_button('Save')
click('Link Text') # Click either a link or a button
click('Button Value')
@pironim
pironim / es.sh
Created March 1, 2013 11:54 — forked from sgringwe/es.sh
cd ~
sudo apt-get update
sudo apt-get install openjdk-7-jre-headless -y
# Download the compiled elasticsearch rather than the source.
wget http://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.20.2.tar.gz -O elasticsearch.tar.gz
tar -xf elasticsearch.tar.gz
rm elasticsearch.tar.gz
sudo mv elasticsearch-* elasticsearch
sudo mv elasticsearch /usr/local/share
@pironim
pironim / gist:5077508
Created March 3, 2013 18:31 — forked from matthewmccullough/gist:47267
RED="\[\033[0;31m\]"
YELLOW="\[\033[0;33m\]"
GREEN="\[\033[0;32m\]"
BLUE="\[\033[0;34m\]"
LIGHT_RED="\[\033[1;31m\]"
LIGHT_GREEN="\[\033[1;32m\]"
WHITE="\[\033[1;37m\]"
LIGHT_GRAY="\[\033[0;37m\]"
COLOR_NONE="\[\e[0m\]"
@pironim
pironim / rails_load_path_tips.md
Created February 14, 2014 19:42 — forked from maxim/rails_load_path_tips.md

In Rails 3

NOTE: This post now lives (and kept up to date) on my blog: http://hakunin.com/rails3-load-paths

If you add a dir directly under app/

Do nothing. All files in this dir are eager loaded in production and lazy loaded in development by default.

If you add a dir under app/something/

@pironim
pironim / vim-version-apt-get-vim-gtk
Last active August 29, 2015 14:06 — forked from nelstrom/vim-version-apt-get-vim-gtk
$ vim --version
VIM - Vi IMproved 7.3 (2010 Aug 15, compiled May 4 2012 04:10:13)
Included patches: 1-429
Modified by [email protected]
Compiled by buildd@
Huge version with GTK2 GUI. Features included (+) or not (-):
+arabic +autocmd +balloon_eval +browse ++builtin_terms +byte_offset +cindent
+clientserver +clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments
+conceal +cryptv +cscope +cursorbind +cursorshape +dialog_con_gui +diff
+digraphs +dnd -ebcdic +emacs_tags +eval +ex_extra +extra_search +farsi
@pironim
pironim / example.rb
Last active August 29, 2015 14:12 — forked from erikeldridge/example.rb
require 'oauth_util.rb'
require 'net/http'
o = OauthUtil.new
o.consumer_key = 'examplek9SGJUTUpocjZ5QjBJmQ9WVdrOVVFNHdSR2x1TkhFbWNHbzlNQS0tJnM9Y29uc3VtkZXJzZWNyZXQmeD0yYg--';
o.consumer_secret = 'exampled88d4109c63e778dsadcdd5c1875814977';
url = 'http://query.yahooapis.com/v1/yql?q=select%20*%20from%20social.updates.search%20where%20query%3D%22search%20terms%22&diagnostics=true';
@pironim
pironim / Vagrantfile
Last active August 29, 2015 14:21 — forked from anthonysterling/Vagrantfile
# Usage: IE={box} vagrant up
#
# Eg. IE=XPIE6 vagrant up
boxes = {
"XPIE6" => "http://aka.ms/vagrant-xp-ie6",
"XPIE8" => "http://aka.ms/vagrant-xp-ie8",
"VistaIE7" => "http://aka.ms/vagrant-vista-ie7",
"Win7IE8" => "http://aka.ms/vagrant-win7-ie8",
"Win7IE9" => "http://aka.ms/vagrant-win7-ie9",
@pironim
pironim / variance.md
Created July 7, 2016 14:15 — forked from maiermic/variance.md
Description of the four kinds of variance: covariance, contravariance, invariance and bivariance.

Variance

The term variance describes how subtyping between higher kinded types is related to subtyping relations of their type arguments.

Higher Kinded Types

A higher kinded type composes type arguments to a new type. I use square bracket notation to define a higher kinded type:

C[T] // The higher kinded type `C` composes type argument `T` to a new type `C[T]`.

The same works with multiple type arguments: