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<?php
declare(strict_types=1);
namespace loophp\collection\Operation;
use Closure;
use Generator;
use loophp\collection\Contract\Operation;
/**
* Class Times.
*/
final class Times implements Operation
{
* @var callable|null
private $callback;
* @var int
private $number;
* Times constructor.
*
* @param int $number
* @param callable|null $callback
public function __construct(int $number, ?callable $callback = null)
$this->number = $number;
$this->callback = $callback;
}
* {@inheritdoc}
public function on(iterable $collection): Closure
$number = $this->number;
$callback = $this->callback;
return static function () use ($number, $callback): Generator {
if (1 > $number) {
return;
if (null === $callback) {
$callback = static function ($value) {
return $value;
};
for ($current = 1; $current <= $number; ++$current) {
yield $callback($current);
loophp /
collection
