Computed Twig solution not showing in preview? I'm trying to understand Twig.

This is what I have got

{{ (data.number_1) * (data.number_2) }}









Why doesn't the preview page calculate the solution?
I figured it out. You need to create a "Preview Page" as per Computed Twig example.

webform 5.x has an inbuilt preview page which does not recalculate when viewed.