September 2017
Beginner to intermediate
396 pages
9h 46m
English
Content preview from Haskell Cookbook
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Working with existentially quantified type
In this recipe, we will create a list of heterogeneous types which are instances of the type class Show. We will use an ExistentialQuantification extension to show the list. We will use StandaloneDeriving extension to derive a type class instance.
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