| public static assertPositiveIntegerOrZero ( integer | float $number ) | ||
| $number | integer | float | |
public static function nth()
{
$args = func_get_args();
/**
* Returns the nth element in a list. First position is 0.
* With associative arrays, it will not preserve the key
*
* @category List
*
* @param int $n List index
* @param $list
*
* @return mixed|NULL
*/
$_nth = function ($n, $list) {
Exception::assertPositiveIntegerOrZero($n);
Exception::assertList($list);
$count = 0;
foreach ($list as $item) {
if ($count === $n) {
return $item;
}
$count++;
}
return NULL;
};
return call_user_func_array(self::curry2($_nth), $args);
}
