fetching data into to below json format
How to fetch the first name and last name from below output:
var data={"rows":[{"key":"sree","value":{"firstname":"sree","lastname":"prakash","_id":"83E15B82-1C1F-4888-9E0A-1485C6B92654","_rev":"1-9d837a8e921dc2985213f42ca609b1e1"}}]}