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@zhengjia
zhengjia / capybara cheat sheet
Created June 7, 2010 01:35
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')
@beccasaurus
beccasaurus / Gemfile
Created June 15, 2012 06:43
window.postMessage
source :rubygems
gem "rack"
@bloudermilk
bloudermilk / benchmark.rb
Created September 9, 2012 00:40
Ruby single quotes vs. double quotes
require "benchmark"
Benchmark.bm(7) do |bench|
bench.report("single") do
1_000_000.times do
'This is a string of substantial length. I doubt you will have many string
literals in your code that are longer than this, but if there are actually
costs to parsing double quoted strings this should exacerbate that.'
end
end
@mikepfirrmann
mikepfirrmann / pretty-exception.rb
Created October 2, 2012 16:24
Print a prettier stack trace for Ruby exceptions
def colorize(text, color_code)
"\e[#{color_code}m#{text}\e[0m"
end
begin
# Here be dangerous things.
rescue => e
print "\r" << (' ' * 50) << "\n"
stacktrace = e.backtrace.map do |call|
if parts = call.match(/^(?<file>.+):(?<line>\d+):in `(?<code>.*)'$/)
@tjmehta
tjmehta / javascript-object-to-querystring.js
Last active December 26, 2024 05:37
Object to Querystring - JavaScript, JS, JSON
function objectToQuerystring (obj) {
return Object.keys.reduce(function (str, key, i) {
var delimiter, val;
delimiter = (i === 0) ? '?' : '&';
key = encodeURIComponent(key);
val = encodeURIComponent(obj[key]);
return [str, delimiter, key, '=', val].join('');
}, '');
}
@jamesyang124
jamesyang124 / ruby_meta.md
Last active February 21, 2025 22:26
Ruby meta programming

#!/bin/ruby --verion => 2.0.0-p353

Self

In Ruby, self is a special variable that always references the current object.

  • Inside class or module definition, self refer to the Class or Module object.
  • Inside instance method, self refer to future instance object.
  • Inside class method, self refer to the class.i
@demisx
demisx / regenerate-binstubs.sh
Last active December 31, 2020 07:48
Regenerate and Springify Rails 4 binstubs
cd my_rails_app_root_dir
rm bin/*
bundle exec rake rails:update:bin
bundle binstubs rspec-core
spring binstub --all
  • Dynamic Dispatch
  • Dynamic Method
  • Ghost Methods
  • Dynamic Proxies
  • Blank Slate
  • Kernel Method
  • Flattening the Scope (aka Nested Lexical Scopes)
  • Context Probe
  • Class Eval (not really a 'spell' more just a demonstration of its usage)
  • Class Macros
@exadeci
exadeci / Capybara.md
Created September 15, 2015 10:11 — forked from tomas-stefano/Capybara.md
Capybara cheatsheet

Capybara Actions

# Anchor
click_link 'Save'

# Button
click_button 'awesome'

# Both above
@joepie91
joepie91 / vpn.md
Last active July 3, 2025 09:58
Don't use VPN services.

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

  • A Russian translation of this article can be found here, contributed by Timur Demin.
  • A Turkish translation can be found here, contributed by agyild.
  • There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.