Javascript / JSON,

I have a JSON file that I wish to sort by a certain field.

I have found the code I am using works fine for sorting strings but when passed a key that is a integer or array an error message is thrown.

I have created a very small version as an example, this can be found in this JSFiddle; [(https://jsfiddle.net/a4poster/54hjyrnt/)]

For example on line 37 -
search_venueDB = approach2Fn(venueDB, "country");

If I change this to:
_search_venueDB = approach2Fn(venueDB, "active");

or

search_venueDB = approach2Fn(venueDB, active);_

an error message is thrown.

I know for the JSON in this example I could use a simple for loop but the actual JSON file is a lot larger.

I am a relative newbie to Javascript, so please be lenient with me. Is their is a better way then I am open to ideas.