The adjust-hue function of Sass allows you to change a color's hue, but only relative to its current...
When connecting to multiple (i.e. > 4) servers to dive into logfiles or do security updates, terminator is what you want...
SudoSlider is a simple yet powerful content slider that makes no (or very few) assumptions about your markup and is...
So you're getting an error message like the following, although your Gemfile lists shoulda-matchers and it has always...
When you cannot make Selenium trigger events you rely on (e.g. a "change" event when filling in a form field...
You need this awkward command: page.driver.browser.action.move_to(page.find(selector).native).perform Note that there are better ways for newer Capybaras...
Using this gem, whenever a Capybara test in Cucumber, Rspec or Minitest fails, the HTML for the failed page and...
Travis CI is a free continuous integration testing service. However, it is really fragile and will break more than it...
When you have a string containing umlauts which don't behave as expected (are not matched with a regexp, can...
ActiveRecord caches results of SQL queries. If you want to discard the cached results for one model, you can call...
SimpleForm is a great approach to simplifying your forms, and it comes with lots of well-defined input types. However...
MuPDF is a PDF reader that renders very quickly, yet still correctly. It supports PDF 1.7 and all the fancy...
When your Rails controller action responds with only a simple text, render text: 'Hello' may not be what you want...
Since version 34, Chromium/Chrome ignores the autocomplete="off" attribute on forms or input fields. Recent versions of other browser do...
If you parse this Yaml ... yes: 'Totally' no: 'Nope' ... you get this Ruby hash: { true: 'Totally', false: 'Nope' }
There are 3 built-in file descriptors: stdin, stdout and stderr (std=standard). (You can define your own, see the...
When using @media CSS queries, Internet Explorer 8 and below will fail to respect them. Though there are several options...
Edge Rider gives your relations a method #origin_class that returns the class the relation is based on.
React.js is a relatively new Javascript templating engine that has two-way-bindings like AngularJS or Batman. The interesting idea...
MenuetOS is an Operating System in development for the PC written entirely in 32/64 bit assembly language. Menuet64 is released...
Programatically invoke Rails generators Require the generator, instantiate it and invoke it (because generators are Thor::Groups, you need...
docopt helps you define interface for your command-line app, and automatically generate parser for it. docopt is based on...
If you regularly get ActionView::MissingTemplate exceptions, maybe some bot visits your site requesting silly formats like: http://www.rails-app.com/makandra.html-username-2000...
If you are using Angular and want something like Rails' simple_format which HTML-formats a plain-text input into...