Sorry for misunderstand... I wonder what is the diffrent between multiple copies that changing in one instance of them will affect the other... While you just can use singleton instead
prototype pattern lets you create new instances of a class by duplicating an already existing instance. You create new instance of class by copying an existing class.
Singleton pattern ensures there is only 1 of class. You do not create new instances of a singleton class, you only have 1 instance
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Sorry for misunderstand... I wonder what is the diffrent between multiple copies that changing in one instance of them will affect the other... While you just can use singleton instead
prototype pattern lets you create new instances of a class by duplicating an already existing instance. You create new instance of class by copying an existing class.
Singleton pattern ensures there is only 1 of class. You do not create new instances of a singleton class, you only have 1 instance