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dana-ross/just_monad.php

Created January 30, 2016 17:04
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just_monad.php
<?php
use DaveRoss\FunctionalProgrammingUtils\Just as Just;
$f = function( $value ) {
$retval = $value + 2;
$value = 5; // Who cares?
return $retval;
};
$g = function( $value ) {
return $value + 3;
};
$myObj = Just::of(1);
echo $myObj->map( $f )->value() + $myObj->map( $g )->value(); // Outputs 7
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