"Open-source software (OSS) is great. Anyone can use virtually any open-source code in their projects." Well, it depends...
Nokogiri is great. It will even fix invalid HTML for you, like a browser would (e.g. move block elements out...
# Basic HTML example # Javascript API (notable methods and properties) video = document.querySelector('video') video.play() video.pause() video.load() // Reset to the beginning and...
TL;DR PostgreSQL handles Rails 4+ text and string columns the same. Some libraries may still reflect on the column...
In a web application you sometimes have tasks that can not be processed during a request but need to go...
An unresponsive service can be worse than a down one. It can tie up your entire system if not handled...
Speaker today is Henning Koch, Head of Development at makandra. This talk will be in German with English slides.
We use CarrierWave in many of our projects to store and serve files of various formats - mostly images. A common...
tl;dr Don't forget require 'English' if you use a named global such as $LAST_MATCH_INFO. Otherwise this...
betterspecs.org is a documentation on how to write better RSpec tests. Note that there are also other approaches like The...
With Rspec you can mock objects or functions, for example like this: expect(my_object).to receive(:my_function).and...
One of the earliest pieces of wisdom we are given as programmers is to not write duplicate code: Don’t...
This seems to be obvious, but you can expect Rake tasks to be called in RSpec. it 'deletes all Users...
In case you want to use pry with an older version of Ruby, you can try the following configurations.
Ruby and Rails have several methods for creating a new object that looks like another: clone, dup, deep_dup. When...
You can install rubygems 3.0.8 (released on February 18, 2020) to keep all the Gem::Specification#rubyforge_project deprecation warnings...
You can run bundle install in parallel. This might be helpful for development, where you often install many new gems...
The linked GitHub repository is a bit like our "dev" cards deck, but groomed from a single person (Josh Branchaud...
Test-Driven Development (TDD) in its most dogmatic form (red-green-refactor in micro-iterations) can be tedious. It does...
Simplecov is a code coverage tool. This helps you to find out which parts of your application are not tested...
A recent patch level Ruby update caused troubles to some of us as applications started to complain about incompatible gem...
Embedding videos on a website is very easy, add a tag to your source code and it just works...
Code comments allow for adding human readable text right next to the code: notes for other developers, and for your...
To find an input with the type hidden, you need to specify the type hidden: find_field('Some label', type...