| public ap ( Widmogrod\FantasyLand\Apply $applicative ) | ||
| $applicative | Widmogrod\FantasyLand\Apply | |
public function ap(FantasyLand\Apply $applicative)
{
return $this->reduce(function ($accumulator, $value) use($applicative) {
/** @var $applicative self */
return f\concatM($accumulator, $applicative->map($value));
}, self::mempty());
}