I am trying to get a client subsidiary using search.lookupFields using the below code:

var clientSub = search.lookupFields({
type: "customer",
id: clientId,
columns: "subsidiary"
});
log.debug('Client Subsidiary is ',clientSub)

When I check the log I get the following:

{
  "subsidiary": [
    {
      "value": "3",
      "text": "ABC Company"
    }
  ]
}

How can I just get the value of the subsidiary?

if you just want the first one it's

clientSub.subsidiary[0].text

and

clientSub.subsidiary[0].value

Thanks!