syntax.vue

<SomeComponent>
  <template #header>
    <div>Header message</div>
  </template>

  <template #item="{ item }">
    <div class="item">{{ item.text }}</div>
  </template>

  <template #footer>
    <div>Footer message</div>
  </template>
</SomeComponent>

My initial thoughts that it was object destructing and that all the key values in header would be binded as attribute property.
On seconds thoughs reading the purpose I think # clashes with css for id.

Maybe something like a ^ hat symbol be better because its pointing to something outside the component.

<SomeComponent>
  <template ^header>
    <div>Header message</div>
  </template>

  <template ^item="{ item }">
    <div class="item">{{ item.text }}</div>
  </template>

  <template ^footer>
    <div>Footer message</div>
  </template>
</SomeComponent>

how about <template &foo>?
& symbol often used as meaning reference in other language. :)

how about <template &foo>?
& symbol often used as meaning reference in other language. :)

👍

FYI - please don't discuss alternatives here, Gist doesn't have comment notifications and this is NOT the RFC itself.

Alternative symbols have been extensively discussed in the RFC threads and comments here are unlikely to be considered.

If you have strong opinions, participate in the discussions in the rfcs repo instead.

Looks great , guessed it right away. The # is good because it is associated with id. this will be a great shorthand addition

Awesome