How to use filter with Nette

Inject filter into presenter:

use Ksadam\Latte\NonBreakingSpace;
...
    /** @var NonBreakingSpace @inject */
    public $nonBreakingSpace;
...
    protected function beforeRender()
    {
        $this->template->addFilter('nonBreakingSpace', $this->nonBreakingSpace);
    }
...

Use filter in latte:

{$variable|nonBreakingSpace}