13270729
Descripción
Mapa Mental por FONTALVO ROMERO EDUARDO JOSÉ , actualizado hace más de 1 año
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Creado por FONTALVO ROMERO EDUARDO JOSÉ
hace más de 6 años
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TYPE AND TYPECLASSES - HASKELL
- Data type
- type constructor
- data nameField = value1 | value 2 | value3
- type constructor
- Typeclasses
- we can make different types
- we can make different types
- Keywords
- "data" means that we're defining a new data type
- The part before the = denotes the type
- The parts after the = are value constructors
- The | is read as or
- data Bool = False | True
- The part before the = denotes the type
- Declarations of types
- Functions that take the fields as parameters
- A value constructor can take some values parameters and then produce a new value.
- A value constructor can take some values parameters and then produce a new value.
- Value constructor
- Value constructors are actually functions that ultimately return a value of a data type
- Value constructors are actually functions that ultimately return a value of a data type
- Derived instances
- Type synonyms
- Recursive data structures
- first we create our data type and then we think how it works.
- To define what it can act like we use the “deriving” keyword
- To define what it can act like we use the “deriving” keyword
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