Posts

Jan 27, 2021
What is Ruby String.length time complexity?
I’ve been asking myself this question: is Ruby String.length like C strlen which is O(n)? In order to find it I’ve decided to dive into the Ruby MRI source code (which is written in C).
Feb 20, 2020
Abstracting SQL union with ActiveRecord
Sometimes you might need to use SQL UNION in your application, in this article we explan you how to abstract SQL union creation within ActiveRecord.
Jun 19, 2017
Different caching strategies for Rails.cache and ActionController::Caching
If you need to use different caching strategies for your Rails.cache and your ActionController::Cache (used for fragment caching) just put the following in your config/environments/env.rb file:
Mar 20, 2017
Thinner Rails Model with the Finder Pattern
Hello everybody, today I want to share with you a pattern learned from gitlab: the finder pattern.
Mar 31, 2016
Javascript multiple inheritance with ES5 and AngularJs
In this article I’ll show you how you can use multiple inheritance(trait) with Javascript EcmaScript 5 and AngularJS 1.0. AngularJS offer you a method: angular.extend that allow you to extend any object with the values and methods of other objects. In this article I show you how you can create a Dog. Dog is an animal but is also a mammal, for this reason a Dog needs to extend animal and also Mammal classes. Below is the code to create a Dog: