getResponses() returned data

[AlphaMGK]

getResponse() returned data was array. but when accessing that array, encountering an undefined result instead of response from server. The response was a json containing array of one object. I've been already set returnType to json but nothing has changed

[AlphaMGK]

I think this issue happen because of ajax async call handling on that method. or maybe I using that method in a wrong ways?