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...
dumple uses --clean option for PostgreSQL/pg_dump
A comprehensive introduction to sending HTML emails. Intro: HTML email: Two words that, when combined, brings tears to a developer...
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...
Understand how we're dealing with exception notifications. Integrate exception notification into your MovieDB. Use your personal e-mail as...
Adopting legacy Rails apps Talk to your mentor about how we're approaching applications that are either old or abandoned...
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...
Building plain text emails with an .erb template doesn't allow you to indent code like you normally do in...
Plot graphs in Ruby WebGraphviz renders in your browser via JavaScript (to store the rendered graph, extract the SVG using...
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...
xargs is a powerful bash tool that can take input from $STDIN and pass it to a given command. I.e...
If you use awesome 3.5, and a gnome or mate panel, the panel will often receive focus when you switch...
When giving a presentation with a projector it is sometimes better to use a dual screen layout instead of a...
When running tests via parallel_tests, you may encounter an error: cannot load such file -- parallel_tests/gherkin/runtime_logger Error creating formatter...