Situation: You want to write a spec for a function inside an Angular service. This function at some point makes...
If you try to listen to events on elements that are nested inside a , Firefox will stop event propagation once...
By default, browsers will not wrap text at syllable boundaries. Text is wrapped at word boundaries only. This card explains...
HTTPie consists of a single http command designed for painless debugging and interaction with HTTP servers, RESTful APIs, and web...
When writing XLSX files, there are gems like rubyXL or axlsx. While they do offer features like formatting or graphs...
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...
When attempting to update RubyGems, depending on updates your previously performed, you might run into an error ERROR: While executing...
We're usually running Ubuntu LTS versions. Sometimes newer hardware requires packages from more recent Ubuntu releases that only come...
A common pattern in Ruby is to to require all files in a specific diretory, using something like Dir.glob(Rails.root.join...
Checking if a JavaScript value is of a given type can be very confusing: There are two operators typeof and...
If you already selected an element and want to get its parent, you can call find(:xpath, '..') on it.
If you use awesome and make a Slack call, you'll constantly have an overlay window pop up taking over...
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...