John looked at the big pile of unopened envelopes. “They contain either bad or good news. What is the average ratio between them?” - he asked himself. John loved statistics. This time some bad news arrived from a medical...

Bayes reasoning Bayes networks Ruby Personalized Coding

    In this post I want to show how different signaling tools could help to break code dependencies: first we consider a contrived example of coupled code, then we eliminate dependencies using different techniques: Promises, Observable Properties and Events, and then...

architecture JavaScript

It is been a couple weeks since my last post where I described how make Testem serve saved fixture files to emulate Rails responses. It appears there are better ways to mockup Ajax calls and organize your JavaScript code.

testing JavaScript

Or how to use Testem in Rails project without touching a single line of Ruby code.

testing JavaScript

Sometimes you might want to have your logs at designated logging service, like logbook.me or logworm.com, because for example, your hosting environment is limited in keeping logs, like Heroku. At least one solution you could try is a setting config.logger...

logging Ruby