Tag: ruby

All the articles with the tag "ruby".

• Module Functions in Ruby: module_function vs extend self

  Updated: 20 Aug, 2025

  In Ruby, modules can provide both namespacing and mixin functionality. Learn how to define module-level functions using module_function and extend self, and the differences between them.

• Magic Comments in Ruby

  Updated: 20 Aug, 2025

  Ruby supports file-level 'magic comments' that instruct the interpreter—most famously for source encoding, but also for freezing strings, shareable constants, and indentation warnings.

• Working with Files in Ruby

  Updated: 20 Aug, 2025

  Learn the basics of working with files in Ruby: opening, reading, writing, streaming, and querying file objects efficiently.

• Loading CSV Data in Rails: Then vs Now

  Updated: 17 Aug, 2025

  A look back at how Rails 2.x apps loaded CSV data into models, and how modern Rails apps can do it more efficiently today.

• Keeping Array Elements Unique in Ruby

  Updated: 17 Aug, 2025

  Explore different ways to keep arrays unique in Ruby—using `uniq`, `uniq!`, and the `|` operator.