Elegant Value Objects in Ruby: A Deep Dive into the `Data` Class
2025-03-23
This article explores creating value objects in Ruby, advocating for the modern `Data` class. `Data` offers a convenient way to define immutable, value-equal objects, supporting various initialization methods including keyword arguments, positional arguments, and hash-like forms. `Data` objects are inherently immutable, comparable by value and type, and allow defining custom methods, enhancing code readability and maintainability. The article compares `Data` with `Struct`, highlighting `Data`'s immutability advantage and addressing handling the mutability of nested objects.
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Data Class