Practical Applications of the Singleton Class in Ruby

07-Dec-2020 2971
The singleton class is rarely used in practice to modify the behavior of specific objects. Read on to learn a few practical applications that might prove useful in your.In the previous post, we discussed how the singleton class powers class methods in Ruby, and how every object instance has its own singleton class.In this post, we will cover a few practical usages of the singleton class as a way to modify the behavior of a particular object.Adding Methods and MixinsSince the singleton class of an object is specific to it, we can add methods to it, remove methods, or include modules, all without affecting other instances.When calling a method on an object, Ruby will first look into its singleton class to find it, before traversing the rest of the method chain.
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