Haskell Lens Tuple at Willis Reinke blog

Haskell Lens Tuple. >>> _1.~ hello $ (1,2) (hello,2) >>> (1,2) & _1.~ hello (hello,2) >>> _1 putstrln. Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary. >>> (1,2)^._1 1 >>> _1.~ hello $ (1,2) (hello,2) >>> (1,2) & _1.~ hello. Here are some examples using the lens. Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary structures, not unlike java's accessor and mutator concepts. Access the 1st field of a tuple (and possibly change its type). Since we get a tuple whenever we have two or more fields, we can actually use lenses to delve further into that tuple. Lenses are the way to access and update parts of data structures in a pure functional way. This package comes batteries included with many useful lenses for the types commonly used from the haskell platform, and with tools for automatically generating lenses and.

Here are some examples using the lens. >>> _1.~ hello $ (1,2) (hello,2) >>> (1,2) & _1.~ hello (hello,2) >>> _1 putstrln. Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary structures, not unlike java's accessor and mutator concepts. Access the 1st field of a tuple (and possibly change its type). Since we get a tuple whenever we have two or more fields, we can actually use lenses to delve further into that tuple. >>> (1,2)^._1 1 >>> _1.~ hello $ (1,2) (hello,2) >>> (1,2) & _1.~ hello. Lenses are the way to access and update parts of data structures in a pure functional way. Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary. This package comes batteries included with many useful lenses for the types commonly used from the haskell platform, and with tools for automatically generating lenses and.

The best introduction to Haskell lenses I've seen r/haskell

Haskell Lens Tuple Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary structures, not unlike java's accessor and mutator concepts. >>> _1.~ hello $ (1,2) (hello,2) >>> (1,2) & _1.~ hello (hello,2) >>> _1 putstrln. This package comes batteries included with many useful lenses for the types commonly used from the haskell platform, and with tools for automatically generating lenses and. >>> (1,2)^._1 1 >>> _1.~ hello $ (1,2) (hello,2) >>> (1,2) & _1.~ hello. Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary. Lenses are the way to access and update parts of data structures in a pure functional way. Access the 1st field of a tuple (and possibly change its type). Here are some examples using the lens. Since we get a tuple whenever we have two or more fields, we can actually use lenses to delve further into that tuple. Lens is a library for haskell that provides lenses, isomorphisms, folds, traversals, getters and setters, which exposes a uniform interface for querying and manipulating arbitrary structures, not unlike java's accessor and mutator concepts.