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PODo I need to understand how Haskell represents data to be able to write good Haskell programs?
 

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    1. USDon Stewart
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    1. COIt is a good question because I have seen people prefixing values with a ! for this very reason.
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      1. PODo I need to understand how Haskell represents data to be able to write good Haskell programs?
      1. USRobert Massaioli
    2. COIn general you shouldn't need to know the internals of Java classes either (decoupling, information hiding, encapsulation...).
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    3. CO@musiKk I agree you shouldn't need to read the source code but I do think it helps to know, broadly, how something is implemented. For example the difference between LinkedList and ArrayList is easy to understand because the names strongly hint at the implementation and I don't have to consult the documentation to discover if a method is O(1) or O(n) or whatever. If you just give me a List, I don't know how the operations will perform without reading the documentation.
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