{#each Object.entries(schueler) as [klasse, schueler]}

{klasse}

{#each schueler as s} {/each}

Name	Vorname	Auswahlstatus
{#if s.age.year < 18}18{/if}-{s.age}-{s.Name}	{s.Vorname}	{s.reservierung || '–'}

{/each}