These tools help you in checking websites globally: DNS Checker This tool allows for global DNS propagation checking. GeoScreenshot
This is useful if, for example, you want to use a background-image that has to scale with the width...
This card will show you how to use git rebase --onto without confusion. Use case: You've got two feature...
Ruby's standard library is in the process of being gemified. It will soon - Ruby 2.5 - consist of RubyGems, which...
TLDR: Browser implementations of HTTP/2 push are horrible. You might end up with worse performance than without pushing. However, the...
By default Middleman generates files with a .html extension. Because of this all your URLs end in /foo.html instead of...
Middleman is a static page generator that brings many of the goodies that Rails developers are used to.
Sometimes, through some firewall or proxy misconfiguration, you might have to deploy to a server that cannot access the git...
Assuming you're wanting to undo the effects of git rm or rm followed by git add -A or something...
Separate subject from body with a blank line Limit the subject line to 50 characters (max. 72), include reference (unique...
Database connections are not thread-safe. That's why ActiveRecord uses a separate database connection for each thread.
In modern default RSpec configurations, your tests are usually run in random order. This helps to detect "flickering" tests that...
In case you want to require a gem, that is not in the Gemfile of you bundle and therefore not...
This card compares patterns to store trees in a relation database like MySQL or PostgreSQL. Implementation examples are for the...
RubyMine provides a visual tool for resolving merge conflicts locally. Follow Git > Resolve Conflicts in the context menu to open...
The parallel-gem is quite easy to use and can speed up rendering time if you want to render the...
Luckily, this is simple. Just install three packages: sudo apt install ipheth-utils libimobiledevice-dev libimobiledevice-utils
Imagine the following HTML structure, where the scrolling container has overflow-y: scroll: +--scrolling container+-+ | | | +-child element+----+ | | | ++iframe++ | | | | | | | | | | | | | | +-----------------------+ | | | | <-- actually cut...
When you load a dump for development, records may reference images that are not available on your machine.
RubyMine allows bookmarking lines of code. This is super-helpful when working on a complex problem. I've been using...
When filling out forms in Selenium tests, Chrome shows the (usual) bubble, asking to store those credentials. While the bubble...
Some pseudo-elements need to be addressed with vendor prefixes. E.g. ::selection is not supported by Firefox, you need to...
Sass lets you easily specify multiple selectors at once like this: .some-block &.has-hover, &:hover outline: 1px solid red...
Sometimes you want/have to send specific http(s) requests. You can do that easy with curl or just write the...