Font Awesome 5 is a comprehensive solution for vector icons on your website. Originally, Font Awesome came as an icon...
Geordi's cucumber command has a --rerun option that reruns failing tests the given number of times. Usage: geordi cucumber...
Let's say you have a gem which has the following module: module SuperClient def self.foo 'Foo' end
Option 1: JSON dump In config/webpack/environment.js you can get inspect environment which includes all webpack config options set for the...
Why secure-only cookies used to be necessary Cookies have an optional secure flag. It tells the browser to not...
Background information about session storage in Rails Rails has a default mechanism to store the session in the CookieStore. This...
If possible your code should detect features, not browsers. But sometimes you just need to sniff the browser. And when...
When your JavaScript bundle is so massive that you cannot load it all up front, I would recommend to load...
If the argument list is the same every time: expect(object).to receive(:foo).with('argument').and_return('response 1...
Don't sum up columns with + in a sql-query if NULL-Values can be present. MySQL and PostgreSQL cannot...
You might have some trouble running a Rails LTS 2 app with MySQL 5.7. If you don't want to...
MySQL and MariaDB have an SQL mode setting which changes how MySQL behaves. The SQL mode value is comprised of...
You need to update a lof gems. Make sure you don't have any version constraints in your...
mysql> SELECT @@global.version; +------------------+ | @@global.version | +------------------+ | 5.6.30 | +------------------+ 1 row in set (0,00 sec) MySQL 5.6 Reference Manual says "BLOB and TEXT...
Understanding your type of cronjob Some cronjobs must only run on a single server. E.g. when you run nightly batch...
This is a small example on how you can check if your Postgres index can be used by a specific...
When making requests using curl, no cookies are sent or stored by default. However, you can tell curl to re...
By default, browsers will not wrap text at syllable boundaries. Text is wrapped at word boundaries only. This card explains...
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...
When an Rspec example fails, I usually investigate by running that example again using rspec . However, this does not work...
An end-to-end test (E2E test) is a script that remote-controls a web browser with tools like Selenium...
Slides for Henning's talk on Sep 21st 2017. Understanding sync vs. async control flow Talking to synchronous (or "blocking...
TL;DR: Bundler 2.0 will rename Gemfile to gems.rb and Gemfile.lock to gems.locked (sic). The old filenames will be supported...