Why?
- Purely functional
- Strongly typed
GHC - industry standard Haskell compiler.
Stack is a GHC tool used for building, running, testing, dependencies management and downloading.
http://docs.haskellstack.org/en/stable/install_and_upgrade/
Linux/macOS:
curl -sSL https://get.haskellstack.org/ | sh
Windows:
- binary installer
Open terminal. In your projects directory type:
stack new fp
It creates a subfolder fp with following structure:
fp
├── ChangeLog.md
├── LICENSE
├── README.md
├── Setup.hs
├── app
│ └── Main.hs
├── fp.cabal
├── package.yaml
├── src
│ └── Lib.hs
├── stack.yaml
└── test
└── Spec.hs
3 directories, 10 files
Go inside: cd exercises.
Check the content of all files.
stack setup
- installs appropriate GHC version (may take a while - 260MB).
stack build
- builds (compile and link) current project. Will do the setup if previous step was omitted.
stack exec -- exercises-exe
- runs compiled applicaiton
stack run
- compiles and runs default executable
stack ghci
- runs REPL - interactive interpreter.
:help (:h, :?)
:load (:l)
:reload (:r)
:type (:t)
:info (:i)
:quit (:q)
- https://www.haskell.org/ - home page
- https://hoogle.haskell.org/ - documentation
- https://www.stackage.org/ - curated list of compatible packages