Test for empty query param

Quy · February 15, 2019, 12:14am

Under App Structure, how to check for an empty query param? I tried "" for the Value.

<a role="button" class="btn btn-outline-primary btn-sm" href="members/" dmx-class:active="query.c == "\"\""">All</a>

ben · February 15, 2019, 1:53am

Try:
<a role=“button” class=“btn btn-outline-primary btn-sm” href=“members/” dmx-class:active="!query.c">All</a>