Modifier: group_by

Group an array’s items by a given key.

sponsors:
  -
    sport: basketball
    team: Jazz
  -
    sport: baseball
    team: Yankees
  -
    sport: basketball
    team: Bulls

{{ sponsors group_by="sport" }}
  {{ basketball }}
    <h2>{{ team }}</h2>
  {{ /basketball }}
{{ /sponsors }}

<h2>Jazz</h2>
<h2>Bulls</h2>