What about Haskell ?

Haskell is a purely functional programming language, where there are no instructions but only expressions that do not mutate variables. Statically typed but also supports type inference, the language can be used in a wide variety of real world domain applications: aerospace, defence, finance ... etc.

Haskell is a general purpose programming language so you can use it in different types of applications: network programming, GUI applications, databases and web client developments, system programming .. etc.

To be able to use Haskell , you will have to install the Haskell Platform

• on Windows:
  1. First you will have to install chocolatey , the windows package manager. To do this, you will have to follow these instructions:
     1. run the powershell as an Administrator.
     2. Run the command:  Get-ExecutionPolicy If it returns Restricted, then run Set-ExecutionPolicy AllSigned command
     3. Run the command that will install Chocolatey: Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
  2. to install the Haskell Platform, use the following command ( with administrator privileges): choco install haskell-dev
     refreshenv
• on ubuntu :

  Simply run the following commands:

  $ sudo apt update
  $ sudo apt install haskell-platform

1. Hello world in haskell:

   1. create a new file in the home folder and save it under the the name hello.hs
   2. in the file write and save the following code:
   Copy Code

   main :: IO ()
   main = putStrLn ("Hello World!")

   1. Now, you will have to compile your code. To do that, just open your terminal and write the following command:
   $ ghc hello.hs
   1. now, you can run your code, by typing the next command in your terminal:
   $ ./hello

If you want to add something about the language or about this post, please feel free to do it by commenting below 🙂 .