How to resolve the algorithm Monads/Maybe monad step by step in the Factor programming language

Published on 12 May 2024 09:40 PM
#Factor

How to resolve the algorithm Monads/Maybe monad step by step in the Factor programming language

Table of Contents

Problem Statement

Demonstrate in your programming language the following:

A Monad is a single type which encapsulates several other types, eliminating boilerplate code. In practice it acts like a dynamically typed computational sequence, though in many cases the type issues can be resolved at compile time. A Maybe Monad is a monad which specifically encapsulates the type of an undefined value.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Monads/Maybe monad step by step in the Factor programming language

Source code in the factor programming language

USING: monads ;
FROM: monads => do ;

! Prints "T{ just { value 7 } }"
3 maybe-monad return >>= [ 2 * maybe-monad return ] swap call
                     >>= [ 1 + maybe-monad return ] swap call .

! Prints "nothing"
nothing >>= [ 2 * maybe-monad return ] swap call
        >>= [ 1 + maybe-monad return ] swap call .


3 <just> [ 2 * <just> ] bind [ 1 + <just> ] bind .
nothing [ 2 * <just> ] bind [ 1 + <just> ] bind .


{
    [ 3 <just> ]
    [ 2 * <just> ]
    [ 1 + <just> ]
} do .
{
    [ nothing ]
    [ 2 * <just> ]
    [ 1 + <just> ]
} do .

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