By default, browsers will not wrap text at syllable boundaries. Text is wrapped at word boundaries only. This card explains...
PostgreSQL's Common Table Expressions (CTEs) can be used to extract sub-queries from bulky SQL statements into a temporary...
PostgreSQL supports the SQL OVERLAPS operator. You can use it to test if two date ranges overlap: => SELECT ('2001-02...
Summary: Don't add chromedriver-helper to the Gemfile the executables might break your tests in projects where chromedriver-helper...
If your Angular app has some decent complexity, it will not be easy to use UI Router straight away. Here...
Git has two kind of tags: annotated lightweight Annotated tags are stored as full objects in the Git database. They...
In most projects I know, Cucumber test suite speed is not an issue. Of course, running 350 features takes its...
When you're using Sidekiq::Web to monitor the Sidekiq status AND have your session cookie configured to a wildcard...
If your application exports CSV, be advised that Excel and other spreadsheet applications treat certain cells (those starting with =, +, - or...
We're usually running Ubuntu LTS versions. Sometimes newer hardware requires packages from more recent Ubuntu releases that only come...
Checking if a JavaScript value is of a given type can be very confusing: There are two operators typeof and...
RSpec allows you to mark a single Example/ExampleGroup so that only this will be run. This is very useful when...
If you already selected an element and want to get its parent, you can call find(:xpath, '..') on it.
When an Rspec example fails, I usually investigate by running that example again using rspec . However, this does not work...
You are not using javascript tests The file is served from a public folder (not via controller) Problem description...
An end-to-end test (E2E test) is a script that remote-controls a web browser with tools like Selenium...
When your public-facing application has a longer downtime for server maintenance or long migrations, it's nice to setup...
Browsers support different types of redirects. Be very careful with these status codes: 301 Moved Permanently 308 Permanent Redirect
Slides for Henning's talk on Sep 21st 2017. Understanding sync vs. async control flow Talking to synchronous (or "blocking...
If you are using PDFKit / wkhtmltopdf, you might as well want to use custom fonts in your stylesheets. Usually this...
Let's say you have a folder images and want to to move all files in there to a new...
You need to set the :inverse_of option manually for relations that have an association to a polymorphic model. Otherwise...
When you want to group rails models of a logical context, namespaces are your friend. However, if you have a...
RSpec allows defining methods inside describe/context blocks which will only exist inside them. However, classes (or any constants, for that...