Difference between revisions of "Cookbook"
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| + | == Haskell Cookbook == |
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| − | [[Category:How to]] |
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| + | * [[Cookbook/Compilers and interpreters|Haskell compilers and interpreters]] |
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| − | * [[Cookbook/Strings|Strings]] |
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* [[Cookbook/Numbers|Numbers]] |
* [[Cookbook/Numbers|Numbers]] |
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| + | * [[Cookbook/Lists and strings|Lists and strings]] |
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| + | * [[Cookbook/Other data structures|Other data structures]] |
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* [[Cookbook/Dates And Time|Dates and time]] |
* [[Cookbook/Dates And Time|Dates and time]] |
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| − | * [[Cookbook/Lists|Lists]] |
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| − | * [[Cookbook/Other data structures|Other data structures]] |
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* [[Cookbook/Pattern matching|Pattern matching]] |
* [[Cookbook/Pattern matching|Pattern matching]] |
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* [[Cookbook/Interactivity|Interactivity]] |
* [[Cookbook/Interactivity|Interactivity]] |
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* [[Cookbook/PDF files|PDF files]] |
* [[Cookbook/PDF files|PDF files]] |
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* [[Cookbook/FFI|FFI]] |
* [[Cookbook/FFI|FFI]] |
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| + | * [[Cookbook/Testing|Testing]] |
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| + | == Similar projects for other programming languages == |
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| − | {{Template:Anonymousdraft}} |
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| + | * [http://cl-cookbook.sourceforge.net/ Common Lisp Cookbook] |
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| − | + | * [http://pleac.sourceforge.net/ PLEAC] |
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| + | * [http://www.zenspider.com/Languages/Ruby/Cookbook/index.html Ruby Cookbook] |
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| − | |||
| − | + | * [http://schemecookbook.org/Cookbook/WebHome Scheme Cookbook] |
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| + | * [http://fssnip.net/ F# Snippets] |
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| − | http://schemecookbook.org/Cookbook/WebHome''' |
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| + | [[Category:FAQ]] |
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| − | == Prelude == |
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| + | [[Category:How to]] |
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| − | A lot of functions are defined in the "[http://www.haskell.org/hoogle/?q=Prelude Prelude]". Also, if you ever want to search for a function, based on the name, type or module, take a look at the excellent [http://www.haskell.org/hoogle/ Hoogle]. This is for a lot of people a must-have while debugging and writing Haskell programs. |
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| − | == GHCi/Hugs == |
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| − | === GHCi interaction === |
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| − | To start GHCi from a command prompt, simply type `ghci' |
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| − | |||
| − | $ ghci |
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| − | ___ ___ _ |
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| − | / _ \ /\ /\/ __(_) |
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| − | / /_\// /_/ / / | | GHC Interactive, version 6.6, for Haskell 98. |
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| − | / /_\\/ __ / /___| | http://www.haskell.org/ghc/ |
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| − | \____/\/ /_/\____/|_| Type :? for help. |
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| − | |||
| − | Loading package base ... linking ... done. |
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| − | Prelude> |
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| − | [http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html Prelude] is the "base" library of Haskell. |
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| − | To create variables at the GHCi prompt, use `let' |
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| − | <haskell> |
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| − | Prelude> let x = 5 |
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| − | Prelude> x |
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| − | 5 |
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| − | Prelude> let y = 3 |
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| − | Prelude> y |
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| − | 3 |
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| − | Prelude> x + y |
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| − | 8 |
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| − | </haskell> |
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| − | `let' is also the way to create simple functions at the GHCi prompt |
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| − | <haskell> |
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| − | Prelude> let fact n = product [1..n] |
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| − | Prelude> fact 5 |
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| − | 120 |
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| − | </haskell> |
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| − | === Checking Types === |
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| − | To check the type of an expression or function, use the command `:t' |
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| − | <haskell> |
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| − | Prelude> :t x |
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| − | x :: Integer |
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| − | Prelude> :t "Hello" |
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| − | "Hello" :: [Char] |
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| − | </haskell> |
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| − | Haskell has the following types defined in the [http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html Standard Prelude]. |
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| − | <haskell> |
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| − | Int -- bounded, word-sized integers |
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| − | Integer -- unbounded integers |
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| − | Double -- floating point values |
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| − | Char -- characters |
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| − | String -- equivalent to [Char], strings are lists of characters |
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| − | () -- the unit type |
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| − | Bool -- booleans |
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| − | [a] -- lists |
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| − | (a,b) -- tuples / product types |
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| − | Either a b -- sum types |
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| − | Maybe a -- optional values |
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| − | </haskell> |
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| − | == Testing == |
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| − | === QuickCheck === |
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| − | TODO |
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| − | === HUnit === |
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| − | TODO |
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Latest revision as of 18:49, 26 May 2011
Haskell Cookbook
- Haskell compilers and interpreters
- Numbers
- Lists and strings
- Other data structures
- Dates and time
- Pattern matching
- Interactivity
- Files
- Network programming
- XML
- Databases access
- Graphical user interfaces
- PDF files
- FFI
- Testing