Sometime we've seen this error when executing e.g. bundle exec rake asset:precompile: double free or corruption (out)
...applications with forms (warp_params will do that for you). But maybe its a better idea to stick to a standard that client libraries know to handle. Tests
...really nice and we implemented it in a similar way like here. In the beginning we tried to remove any duplicated in the schema files. So when a booking had...
Use option:checked to find the currently selected option: select.querySelector('option:checked') Yes, :checked, not :selected. This is the same...
RSpec lets you define the arguments with which you expect a method to be invoked: subject.should_receive(:say).with('hello...
When receiving a new SSL-Certificate for an existing SSL-key it should be checked that they match cryptographically.
Debouncing a method call delays its execution until after a specified time has passed. If it's called again before...
Looks simpler than inaction_mailer: gem install mailcatcher mailcatcher Setup Rails to send mails to 127.0.0.1:1025. Usually you want...
When accepting GIF images, you will also accept animated GIFs. Resizing them can be a time-consuming task and will...
A severe bug was found in ImageMagick by Bryan Gonzalez from Ocelot Team. It allows to embed the content of...
Reacting on a class getting added can be done with a mutation observer. Example: const items = document.querySelectorAll('.item') const expectedClass...
When you use a belongs_to or has_many macro you might be surprised that the methods that it generates does not override a method with the same name. Take...
class Project < ActiveRecord::Base def user "foo" end belongs_to :user end Project.new.user still returns "foo". The reason for this is that what belongs_to does is actually...
Partials always define a local variable with the same name as themselves. E.g. when you are in _recent_users.html.erb, a local...
...spawns another process to run a browser, it will inherit the environment and also believe it lives in that zone. To do so, run the following code before your test...
Ruby methods which load from a Yaml file, like YAML.safe_load or YAML.safe_load_file, support passing freeze: true to...
...Chrome for Testing if none is found on the system. I worked around this behavior by setting the path to the binary in the selenium initializer Capybara.register_driver :selenium do...
In case you want to use pry with an older version of Ruby, you can try the following configurations.
When you do a bitwise copy using the dd tool you will not see any output until it completes or...
Added: State machine can now use the :prefix-option to avoid name collision if you define multiple state machines on...
=> >> response.code => 422 FYI, the http gem is a great alternative to RestClient which behaves like that by default and has a well-designed API in general (much better than...
When a method has keyword arguments, Ruby offers implicit conversion of a Hash argument into keyword arguments. This conversion is...
If you want to move a complete commit from one repository to another (and you don't want to add...
The tree command will show you the contents of a directory and all its sub directories as a tree:
...its version number, it is considered a pre-release: 1.0.0.rc1 2.3.0.alpha2 3.0.0.beta3 4.0.0.pre.rc2 Even if a pre-release gem has the highest version number, it is...
...Semantic versioning Converted RubyGems version 1.0.0-rc1 1.0.0.pre.rc1 2.3.0-alpha2 2.3.0.pre.alpha2 3.0.0-beta3 3.0.0.pre.beta3 Note that npm packages force you to use Semantic Versioning's naming convention...
If a Cucumber run deletes your application directory, an integration fail between Capybara and Capybara Screenshot may be the cause...