use Nextras\Application\LinkFactory;

class Example
{
	/** @var LinkFactory */
	private $linkFactory;

	public function __construct(LinkFactory $linkFactory)
	{
		$this->linkFactory = $linkFactory;
	}

	public function doSomething()
	{
		// relative link with optional fragment (#comments) and parameters
		$link = $this->linkFactory->link('Products:view#comments', ['id' => 123]);

		// absolute link starts with '//'
		$link = $this->linkFactory->link('//Homepage:default');
	}
}