I got the following error after updating the selenium-webdriver gem: wrong number of arguments (0 for 1) (ArgumentError) /home/pointoo-dev/.rvm/gems/ruby-1.8.7-p374/gems/selenium-webdriver-2.35.1/lib/selenium/webdriver/common/platform.rb...
Gem to show failing specs instantly. Unlike the --fail-fast option it doesn't abort abort on the first failure...
The Javascript in operator does what Hash#has_key? does in Ruby: Return whether an object has a property.
To find a hash key by it's value, i.e. reverse lookup, one can use Hash#key. It's available...
With ActiveSupport you can say: class Robot def self.likes_humans? 'Nope.' end delegate :likes_humans?, to: :class end Robot.likes_humans...
Preview what your markdown would look like on Github. Helpful e.g. when writing or extending a Readme for your gem...
Add gem 'database_cleaner' to your Gemfile. Then: Cucumber & Rails 3+ # features/support/database_cleaner.rb DatabaseCleaner.clean_with(:deletion) # clean once, now DatabaseCleaner.strategy = :transaction...
When a gem author releases a new version to Rubygems, usually a tag with the version number (e.g. v1.2.0) is...
Jonas Nicklas, the author of Carrierwave and Capybara, has released Refile, a gem for handling file uploads in Rails. It...
Make sure you have libcurl3-dev installed: sudo apt-get install libcurl3-dev gem install typhoeus
Capybara-screenshot can automatically save screenshots and the HTML for failed Capybara tests in Cucumber, RSpec or Minitest. Requires Capybara...
Databound provides Javascript a simple API to the Ruby on Rails CRUD. Tries to expose a full model CRUD as...
Rails guide that covers PostgreSQL-specific column types and usages for Active Record. You should especially keep in mind the...
Chances are you're seeing the warning repeated a lot of times, maybe thousands of times. Here's how to...
If you want a class-like construct in JavaScript, you can use the module pattern below. The module pattern gives...
Traveling Ruby is a project which supplies self-contained, "portable" Ruby binaries: Ruby binaries that can run on any Linux...
Option 0: Download from the official page (preferred) Open https://googlechromelabs.github.io/chrome-for-testing/ In Section "Stable" > chromedriver / linux64 > Download ZIP from...
Shortener is a Rails Engine Gem that makes it easy to create and interpret shortened URLs on your own domain...
Upgrading from Ruby 1.8.7 to 2.1.2 took me an hour for a medium-sized application. It involved hardly any changes...
For our production servers we use Passenger as a Ruby application server. While it is possible to use Passenger for...
If you make a gem with Bundler, you will get a rake release task that will instantly publish your gem...
Using this gem I could get JSON generation from a large, nested Ruby hash down from 200ms to 2ms.
Confusingly, RVM installs the bundler gem into the @global gemset, which is available to all gemsets and Rubies.
Firefox 5.0.1, which we were using for most Rails 2.3 projects, does not run on Ubuntu 14.04 any more. Here...