https://github.com/andrea/learninghaskell

https://github.com/andrea/learninghaskell

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• Host: GitHub
• URL: https://github.com/andrea/learninghaskell
• Owner: Andrea
• Created: 2014-12-23T20:04:38.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-02-12T15:25:22.000Z (almost 10 years ago)
• Last Synced: 2024-11-05T12:12:20.727Z (about 2 months ago)
• Language: Haskell
• Size: 257 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Learning Haskell

===============

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These notes are personal, not sure how much sense they would make to anyone else. i.e read at your own risk :d

#### Language basic things that I might forget (according to me )

* if needs else

* if is an expression 

* an expression is code that returns a value

* valid in functions name, usually used a non lazy function (strict)

* Functions names start with lowercase 

* When a function doesn't take any parameters, we usually say it's a definition (or a name). Because we can't change what names (and functions) mean once we've defined them

* not sure how I feel about throwing exceptions

### File Parser

#### Project setup with Cabal

* Use *cabal sandbox init*

* Use *cabal init*

* Use *cabal build*

 

```Haskell 

data Config = Config

{ value1 :: String

, value2 :: Int

} deriving(Show)

``` 

Using Show , Show is a typeclass

Applicative are functors

```Haskell 

import Control.Monad

import Data.Maybe

<*> --apply method

<$> -- fmap

liftM2

fromMaybe

forceEither

```

#### Check out

* Stackage