(expand = !expand)} >
{#if expand}
{:else}
{/if} {title}
{pluralize($t('course.navItem.landing_page.lessons'), lessonCount, true)}, {pluralize($t('course.navItem.landing_page.exercises'), exerciseCount, true)}
{#if expand} {#each lessons as lesson (lesson.id)}
{lesson.title}
{/each} {/if}