Immutability and Design Patterns in Ruby

04/01/2021

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by   Seamus Brady, et al.

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Functional Programming has seen a resurgence in interest in the last few years and is often mentioned in opposition to Object-Orientated Programming. However, Object-Orientated Programming can actually absorb some of the lessons of Functional Programming to improve performance and reliability. This paper examines three ways in which Immutability, a common Functional Programming technique, can be used to develop immutable objects in Ruby.