[HELP] filterObjs question

Okay, so this is my code. As you can see, I'm trying to filter abilities that don't contain a specific string within them, then parse them as JSON and return the results: Skills = filterObjs(function(obj) {         if (obj.get('type') !== 'ability' || obj.action.indexOf('"triggertime": "turn"') == -1) return false;         let newobj = JSON.parse(obj.action);         newobj["source"] = obj.characterid;         return newobj;     }); When I run it, however, I get the error: TypeError: Cannot read property 'indexOf' of undefined Which makes sense, right? However, I was under the impression that due to short-circuited evaluation , the statement after the OR (obj.action.indexOf('"triggertime": "turn"') == -1) would never evaluate in the first place, so the error wouldn't be thrown. Since that's not the case, how do I correct my code so that it won't throw that error for non-ability objects?

The obj passed to the filter function for filterObjs() is a Roll20 Option.  You need to use obj.get('action').indexOf().

That said, because of the indexing on things like type that Riley added, it's probably more efficient to do a findObjs() on type first, then filter and map: let Skills = findObjs({         type: 'ability'     })     .filter((obj)=> /"triggertime":\s*"turn"/.test(obj.get('action')))     .map((obj)=>({         ...JSON.parse(obj.get('action')),         source: obj.get('characterid')     }));