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...

Sometimes huge refactorings or refactoring of core concepts of your application are necessary for being able to meet new requirements...

A comprehensive introduction to sending HTML emails. Intro: HTML email: Two words that, when combined, brings tears to a developer...

So you're getting an error like this: undefined method `activate_bin_path' for Gem:Module (NoMethodError)

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...

When running tests via parallel_tests, you may encounter an error: cannot load such file -- parallel_tests/gherkin/runtime_logger Error creating formatter...

When testing your command line application with Aruba, you might need to stub out other binaries you don't want...

In order to have monitoring for Sidekiq (like queue sizes, last run of Sidekiq) your application should have a monitoring...

This might be relevant for us since we're often managing customer documents in our apps. I played around with...

VCR lets you configure how it matches requests to recorded cassettes: In order to properly replay previously recorded requests, VCR...

If you want to find the commits that touched a specific text in a file, use git log -G 'text...

SVG is an acronym for "scalable vector graphics". SVGs should be used whenever an image can be described with vector...

1. Sometimes you have search entries in the autocomplete of the address bar, which are higher weighted than your bookmarks...

Same requests are recorded only once in vcr. Replaying a test fails, if you trigger the same request multiple times...

Good article about what "gamma correction" means for color processing, and what "sRGB" actually means. You probably do not need...

You want Spring for super-fast binstubs like bin/rails or bin/rspec which avoid Rails boot time. You want parallel_tests...

Sometimes you might need to nest a git-project inside another git-project. The right strategy is to use submodules...

Promises are the new way™ to express "Do this, and once you're done, do that". In contrast to callbacks...

Isolate scopes offer three kinds of variable binding. One of them is &, allowing to bind a property of the isolate...

There's no user interface to give an AWS IAM user read/write access to a selected list of S3 buckets...

Ruby's __FILE__ keyword returns the path to the current file. On popular for this are Ruby binaries: #!/usr/bin/env ruby...