How to get the name of the array in json data using JavaScript -

i have json object comes javascript api call:

{   "myarray": [     {       "version": 5,       "permissionmask": 1     },     {       "version": 126,       "permissionmask": 1     }   ] } 

how can access name of array (i.e myarray) in javascript. need use name of array determine flow later on.

object.keys(data)[0] # => "myarray" 

a terminology note: solution assumes have javascript object. might have json string, in case solution:

object.keys(json.parse(data))[0] # => "myarray" 

however, "json object", in javascript, 1 - 1 used now, has json.parse , json.stringify methods. have not json object except perhaps in trivial interpretation of second case, values in javascript objects, including strings.