data- The response you are returning from the server. It depends on what you specify dataType. If you specify jsonas parameter argument dataType, jQuery will interpret the data received from the server as json.
textStatusgives you information about the answer, like whether it was successful or something bad happened. Possible values :
successerrornotmodifiedtimeoutparsererror
success , textStatus success.
parsererror, . , , dataType json, XML, parsererror, error .