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datashaman/Datashaman\Logic\isLeft Example

Last active May 8, 2019 05:06
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Datashaman\Logic\isLeft Example
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Datashaman\Logic\isLeft Example
<?php
<<<CONFIG
packages:
- "datashaman/logic: dev-master"
CONFIG;
#
# This is a Melody script. http://melody.sensiolabs.org/
#
use function Datashaman\Logic\isLeft;
use function Datashaman\Logic\mkLeft;
use function Datashaman\Logic\mkRight;
use function Datashaman\Logic\repr;
$err = mkLeft('Error');
$ok = mkRight('OK');
echo repr(isLeft($err)) . PHP_EOL;
echo repr(isLeft($ok)) . PHP_EOL;
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