TLS/SSL certificates are often used for HTTPS traffic. Occasionally a service may also use their TLS certificate to support public...
The linked article has a great explanation how to to deal with string encodings in Ruby. Furthermore you can check...
Or: How to avoid and refactor spaghetti code Please note that I tried to keep the examples small. The effects...
Imagine you want to write a cucumber test for a user-to-user chat. To do this, you need the...
This is a personal post-mortem analysis of a project that was mainly build to provide a REST API to...
PostgreSQL and ActiveRecord have a good support for storing dynamic attributes (hashes) in columns of type JSONB. But sometimes you...
Root Insurance runs their application as a monolithic Rails application – but they've modularized it inside its repository. Here is...
This checklist should help you to check edge cases that are not part of the default Carrierwave configuration.
When you have two inputs, where one contains the name of the other (eg. Name and Name with special treatment...
Debugging image color profiles is hard. You can't trust your eyes in this matter, as the image rendering depends...
SimpleScreenRecorder I recommend simplescreenrecorder, it produces an adequate output with only a few clicks. The audio recording contained some...
To test that an object was constructed by a given constructor function, use jasmine.any(Klass): describe('plus()', function() { it ('returns...
Browsers come with a set of built-in elements like or . When we need a new component not covered by...
If you want to make your Rails application be capable of sending SMTP emails, check out the action mailer configuration...
It's every developer's nightmare: SQL queries that get large and unwieldy. This can happen fairly quickly with the...
Install the latest bundler version: gem install bundler Fetching bundler-2.3.5.gem Successfully installed bundler-2.3.5 1 gem installed Update the bundler...
A primer on vector graphics For rastered image formats like JPG or PNG, each pixel is basically drawn on a...
There is a kind of features in web applications that hinder automated integration tests. Examples include cookie consent banners or...
Rubygems supports a 2FA for your account. Once enabled you need to provide your personal OTP code for every release...
ActiveSupport (since 4.1) includes test helpers to manipulate time, just like the Timecop gem: To freeze the current time, use...
The Ruby standard lib ships with a YAML Parser called Psych. But serializing and deserializing data seems not as obvious...
Capybara provides execute_script and evaluate_script to execute JavaScript code in a Selenium-controlled browser. This however is not...
There is a practical short list for valid/invalid example email addresses - Thanks to Florian L.! The definition for valid emails...
Most of the time it is a tedious task to apply a code style guide to an existing code...