Method#to_proc - just like Symbol#to_proc

Understand how array.inject(&:+) works.

ActiveRecord comes with a mechanism to track changes to your model with ActiveModel::Dirty. Lets put it to some use.

A new array can be created by using two different ways in ruby and can contain different types of objects.

This is in continuation with the ArrayInquirer post. Lets see how to implement a Custom Inquirer for a Rails model similar to ActiveSupport StringInquirer and ArrayInquirer.

Avoiding a third party redirect can be solved with simulation of user browser actions.

In my previous post, I have explained how to extend ActiveRecord::Base. In this post, I will explain how to extend core ruby or rails classes in rails.

The intent of decorator design pattern, as described in Design Patterns by the Gang of Four is to attach additional responsibilities to an object dynamically. Decorators provide a flexible alternative to subclassing for extending functionality.

Ruby 2.4 has optimized Array#min and Array#max methods. Here are some benchmarks.

I never knew this exisited. It seems it is not documented anywhere and I have no idea how it works, but yes: