Processes in Linux might be put into Swap ("virtual memory") occasionally. Even parts of a single process might be removed...
If you have made any changes to a libvirt xml config file you have to reload is. One way is...
The following will search for all .feature files containing a search term and run them using geordi. find features/ -name...
All new browsers support the new object-fit CSS property. It allows to specify how an element behaves within its...
Ever needed to use a global variable in Rails? Ugh, that's the worst. If you need global state, you...
Reading user input in console applications is usually done using Kernel#gets. Stubbing that can be a bit hairy.
When testing Ruby code that prints something to the terminal, you can test that output. Since RSpec 3.0 there is...
As you may know, HAML expands data attributes that are given as a hash: %div{ data: { count: 3 } }
IE has a "Compatibility Mode" for old browsers. You can keep IE from offering it (and fix some other things...
The linked site hosts a simple test. It shows two images with narrow vertical/horizontal lines. The more they resemble each...
PostgreSQL uses the C library's locale facilities for sorting strings: First, all the letters are compared, ignoring spaces and...
The way that Javascript schedules timeouts and promise callbacks is more complicated than you think. This can be the reason...
Let's say you have two factories that share some attributes and traits: FactoryBot.define do factory :user do screen_name...
Have you ever mistaken one Rails environment for another? The attached helper will help you to never do it again...
This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them...
When receiving a new SSL-Certificate for an existing SSL-key it should be checked that they match cryptographically.
Converting string characters to or from their integer value (7-bit ASCII value or UTF-8 codepoint) can be done...
It claims to be even faster and brings a new plugin that polyfills object-fit and object-position. This allows...
As your Rails project grows, you will accumulate a number of small patches. These will usually fix a bug in...
Automatically convert bitmap images like JPEGs, GIFs and PNGs to the crisp, clean, scalable vector art of EPS, SVG, and...
At least Selenium cannot find disabled fields. Unless you find them explicitly: find_field 'This is disabled', disabled: true
When you are working with jQuery selectors and collections, many times you want to know if the collection actually contains...
to create a Gallery that has a name and has_many :images, which in turn have a...
UI sortable helps reordering items with drag 'n drop. It works quite fine. Proven configuration for sorting table rows