read JSON data from Javascript

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Safely turning a JSON string into an object 22 answers

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You have to parse the data into an object variable:

var data = JSON.parse( datastring );

After that, you can address certain properties directly (eg data.status).

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既然这是一个数组，你应该像访问它

var data = JSON.parse(json_string);
var status = data[2].status

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I suggest restructuring the response from the server if possible, since the response is not so well-formatted.

Step 1 : Change the response as follows:

{
 "value1":

       {"longitude":"103.8439764",
        "latitude":"1.0345","date":"Tue 04 Jun, 2013",
        "time":"12:27"},

 "value2":
       {"longitude":"104.8439764",
        "latitude":"1.235","date":"Mon 03 Jun, 2013",
        "time":"12:28"},
 "status":
        "his_loc"

}

Step 2 : Parse the response to a JSON object.

var json = JSON.parse(responseString);

And now you can access the status as follows:

var status = json.status;

That's it!

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