Ajax responseText Parsing json Data Case

Solution ajax processing server side returns the result responseText is JSON data.

First, the contents of the file in json format are as follows:

{
    "city":"ShangHai",  
    "telephone":"123456789"
}

Second, the json data returned by the server is the above content. In responseText, there are two methods to fetch it out now:

Method 1:

var json=JSON.parse(request.responseText);  

alert(json.city);

Method 2:

var result = request.responseText;  

var jsonObject=eval("("+result+")");  

alert(jsonObject.telephone);