Monads/List monad: Difference between revisions

=={{header|Factor}}==

Factor comes with an implementation of Haskell-style monads in the <code>monads</code> vocabulary.

<lang factor>USING: kernel math monads prettyprint ;

FROM: monads => do ;

{ 3 4 5 }

>>= [ 1 + array-monad return ] swap call

>>= [ 2 * array-monad return ] swap call .</lang>

Or:

<lang factor>{ 3 4 5 }

[ 1 + array-monad return ] bind

[ 2 * array-monad return ] bind .</lang>

Or:

<lang factor>{

[ { 3 4 5 } ]

[ 1 + array-monad return ]

[ 2 * array-monad return ]

} do .</lang>

{{out}}

<pre>

{ 8 10 12 }

</pre>