27 January 2019 by Igor Springer on Ruby, Tips & Tricks

Not-so-private constants in Ruby

Using constants is idiomatic for Ruby. We use them to store something meaningful (a well-suited name is very important), connected with a class that holds it. Consequently, we make our code easier to reason about, avoid duplication and, very often, more performant.

Is `Array` the only option for storing elements in Ruby?

Array class is one of the most commonly used Ruby class in day-to-day development. Enumerable module adds a comprehensive set of methods which makes playing with arrays a pleasant activity. I have just written set deliberately.

Common mistakes that cause Ruby on Rails apps outages

Everybody makes mistakes. Some of them are caught early in a deployment pipeline: during writing code, testing it locally or code review process. Unfortunately, some hide cleverly and pop up on the production environment.

Ruby `allocate` method

TIL that Ruby, or to be more precise Class class, offers allocate public instance method.

`ActiveSupport::ArrayInquirer` and even more Rails magic

In the previous article, we dived into ActiveSupport::StringInquirer class and superpowers it gives to String objects. After I had published that article I decided to take another look at the ActiveSupport module and to my surprise, I found something even more interesting, ActiveSupport::ArrayInquirer class.