Ruby Modules and Mixins
Ruby, known for its simplicity and efficiency, offers various tools and resources, adding a layer of flexibility to the coding environment. Among these tools are Ruby Modules and Mixins. This article will explore these functionalities in detail while providing real-world examples demonstrating their use cases.
Understanding Ruby Modules
Primarily used as a…
Facade in Ruby is a design pattern that helps simplify complex systems by providing a unified interface to a set of interfaces in a subsystem. In Ruby, the Facade pattern provides a simplified interface to a more complex system. You're in the right place if you're new to Ruby and want to learn more about…
In this article, we'll dive deep into more advanced Ruby programming topics, such as metaprogramming, concurrency, and available programming.
Metaprogramming in Ruby
Metaprogramming is the ability to write code that writes code. Metaprogramming is a powerful technique in Ruby that allows developers to generate and modify code at runtime dynamically. This can be useful in…
If you're a Ruby developer, you've probably heard of Capybara and Rspec. These two testing frameworks can be combined to create robust, practical tests for your Ruby applications. In this post, we'll explore how to use Capybara and Rspec to test your Ruby code.
Capybara & Rspec
First, let's take a closer look at Capybara.…
In this article, we'll show you how to use ChatGPT in Ruby by building a simple command-line application. This application will allow you to generate text based on a prompt that you provide.
OpenAI's GPT-3 is a cutting-edge language model that has taken the artificial intelligence community by storm. Its ability to generate human-like text…
Encoding issue in Ruby
This guide discusses how to handle the encoding issue in Ruby.
If you've ever tried to read or write a file that contains Unicode characters, you've probably encountered the encoding issue.
The easiest way to fix this is to use the File#open method with the :encoding option.
Here's an example of how to read a…
query Issues in Ruby
If you want to solve N+1 query issues in Ruby, you need to use the ActiveRecord#eager_load or ActiveRecord#includes methods.
# without eager loading
posts = Post.all
posts.each do |post|
puts post.user.name
end
# with eager loading
posts = Post.includes(:user)
posts.each do |post|
puts post.user.name
end
The ActiveRecord#includes method will eagerly load the associations (in this case, the user association).…
Visitor Pattern in Ruby
The visitor pattern in Ruby is a way of separating an algorithm from an object structure on which it operates.
A practical way to think about this is:
You have a bunch of objects (nodes) that need to be processed in some way
You don't want to add a new method to…
Template Method in Ruby
The template method in Ruby is one of the most practical design patterns in object-oriented programming.
The template method allows you to define the steps of an algorithm and then will enable subclasses to provide the implementation for one or more actions.
This is useful when you want to keep the overall algorithm the…
Flyweight Pattern in Ruby
The Flyweight pattern in Ruby is a software design pattern used to minimize memory usage by sharing as much data as possible. It is often used with other data structures, such as hash tables and trees.
The idea behind the flyweight pattern is to store data in a way that minimizes the amount…