TLDR: When you put CSS rules into a partial and import that partial multiple times, the CSS rules will be...
First find the reference for the entry you want through looking at the stash: $ git stash list stash@{0}: WIP...
Collection of useful tools in the Chrome JavaScript console. Make the whole page editable This is not special to Chrome...
TruffleRuby is an experimental Ruby implementation that tries to achieve ~10x performance over MRI. This has been on our radar...
Sometimes huge refactorings or refactoring of core concepts of your application are necessary for being able to meet new requirements...
TLDR: A function is hard to use when it sometimes returns a promise and sometimes throws an exception. When writing...
A comprehensive introduction to sending HTML emails. Intro: HTML email: Two words that, when combined, brings tears to a developer...
You may know the double asterisk operator from Ruby snippets like Dir['spec/**/*_spec.rb'] where it expands to an arbitrary...
Ruby's regular expressions can be represented differently. When serializing them, you probably want to use inspect instead of to...
In general, you should not put a block element inside an inline element. So don't do this: text
If you get an error like this for a puppet mount: $ > puppet agent --test Info: Retrieving pluginfacts Info: Retrieving plugin...
So you're getting an error like this: undefined method `activate_bin_path' for Gem:Module (NoMethodError)
If your Carrierwave uploader dynamically generates the filename (e.g. by incorporating a user's name), you must call model.save! after...
Chrome gives you the currently selected element in the inspector with $0. If you select a button in the DOM...
TL;DR: Update the 'net-ssh' gem by adding to your Gemfile: gem 'net-ssh', '=2.9.1' Now run bundle update...
Put the following into config.ru in your Rails root folder: # Require your environment file to bootstrap Rails require ::File.dirname(__FILE...
So you're getting this failure when running bundle install on an older project: Your Gemfile.lock is corrupt. The following...
Plot graphs in Ruby WebGraphviz renders in your browser via JavaScript (to store the rendered graph, extract the SVG using...
Like you know from "How to tell ActiveRecord how to preload associations (either JOINs or separate queries)", you can tell...
This card tries to summarize by example the different uses of heredoc. In Ruby << vs. <<- vs. <<~ In Rails strip_heredoc...
The linked article states that CSS breakpoints should group "similar" screen sizes and thus be at: 600px "narrow"
You can use three different versions of the regular expression syntax in grep: basic: -G extended: -E(POSIX)
TL;DR Debugging problems with javascript errors in cucumber tests is sometimes easier in the browser. Run the test, stop...
This method will remove automatically installed packages that no other packages depend on any more. This, of course...