{% case handle %}
  {% when 'cake' %}
     This is a cake
  {% when 'cookie' %}
     This is a cookie
  {% else %}
     This is not a cake nor a cookie
{% endcase %}

{% comment %}
hello world a

{% endcomment %}

{%- comment -%}
hello world b
{%- endcomment -%}

{% capture foo_object %}
{% if condition %}
size:  {{ foo_bar  }},
color: {{ bar | json }}
{% endif %}
{% endcapture %}