nodejs-convert json object to string array in $.get response

Now I am trying to return array of strings with the response to a $.get() request , so I converted the string array to JSON object

var messagesFromFile = Array();
    messagesFromFile[0]="code";
    messagesFromFile[1]="eat";
    messagesFromFile[2]="play";
    messagesFromFile[3]="sleep";
    response.writeHead(200,{'Content-Type':'application/json'})
    response.write(JSON.stringify(messagesFromFile));
    response.end();

, then in the front end ,I wanted to convert the json object back to string array

$(window).load(function(){
            $.get("http://localhost:8000",
                {
                    name:"GetAllMessages"
                },function(data,status){
                    try{
                        var arr = $.parseJSON(data);
                    }
                    catch(err){
                        alert(err);
                    }
                });
        });

but an "syntax error unexpected token" exception is thrown !!! any help to overcome this exception or any way to return array of strings with the response thanks in advance