If Rails or Rake are complaining about a missing gem that is listed in your Gemfile.lock and the listed version...

Sometimes you want to use a vanilla Ruby method like a block. You can use Object#method to obtain a...

This article explains why some regular expressions take years to match against certain strings. A common culprit are nested repetition...

Most likely you run rake and your code is causing an exception which is not the one shown in your...

Consider you have a website vhost listening to www.example.com, redirecting all incoming requests that do not talk about the configured...

ExecJS lets you run JavaScript code from Ruby. It automatically picks the best runtime available to evaluate your JavaScript program...

We forked craken today and fixed one of the issues we had with new (>0.8.7) rake versions. The craken:install...

The state_machine gem comes with a rake task that lets you generate PNG graphs from any model using state...

class Errormaster CoffeeIsOut = Class.new(StandardError) # is prettier than class CoffeeIsOut < StandardError; end end Reference such an error class with Errormaster...

You can create a Regexp object from existing Regexp objects by using the interpolation syntax you know from strings:

Observed on Rails 2.3 and machinist 1.0.6 Like the title says, when you define the method empty? like in the...

These methods are available to you: page.driver.browser.switch_to.alert.accept page.driver.browser.switch_to.alert.dismiss page.driver.browser.switch_to.alert.text # the confirmation text Spreewald gives you steps like these:

Grit gives you object oriented read/write access to Git repositories via Ruby.

Ever wondered how Rails talks to itself in a Cucumber feature? In Rails 3 you can do it like this...

jQuery as new default Javascript library, streaming response support, attr_accessible with roles, prepared statements, easier migrations.

If you have a time given in a different time zone than your local one, parsing will convert it for...

I believe that when WEBrick has trouble bringing up your Rails application, the WEBrick component that is supposed to print...

If you have any class which requires access to some path methods generated by your routes. Even though you could...

While it might seem trivial to implement an invoice that sums up items and shows net, gross and vat totals...

You've been there: A form cannot be submitted, but you don't see a validation error because the field...

Calling Time#utc, Time#gmt or Time#localtime will not create a converted copy. Instead these methods modify the receiving...

I recently browsed through the ActiveSupport code and found some nice stuff I did not know about: ActiveSupport::Callbacks

Consider this HTML: Even though the surrounding container defines a line-height, which vertically centers its inline elements, the check...