Inline expressions sort of suck because they're hard to debug... if you end up with a really long, unweildy filter, here's a way to debug them in the browser console.
ex. of lengthy expression:
<tr id="element" ng-repeat="resource in alertingEnvironment.environment.database_services.resources | map:'servers.resources' | flatten | unique:'id' | concat: alertingEnvironment.environment.servers.resources">
</tr>
function $eval(expr) {