How to display data from db after insertion? [L5.2]

what I am trying to do here is after the insertion I want to display the data in the same page without refreshing the page

ROUTES

Route::post('viewBook/{bookId}', 'CommentsController@insertcomment');

//there's {bookId} cause of this http://localhost:8000/viewBook/1

CONTROLLER

public function insertcomment(Request $request)
{

    $commenter = Auth::user()->id;
    $comments   = new Comments;
    $comments->comment = $request->input('mycomment');
    $comments->commenter = $commenter;
    $comments->save(); //insert success

    //getting the data
    $data=DB::table('comments')
        ->select('comment')
        ->get();
    return response()->json($data,true);
}

via donnah