[javascript] Loop and get key/value pair for JSON array using jQuery

I'm looking to loop through a JSON array and display the key and value.

It should be a simplified version of the following post, but I don't seem to have the syntax correct: jQuery 'each' loop with JSON array

I also saw the post Get name of key in key/value pair in JSON using jQuery?, but it also seemed like lots of code for a simple activity.

This illustrates what I'm looking for (but it doesn't work):

var result = '{"FirstName":"John","LastName":"Doe","Email":"[email protected]","Phone":"123 dead drive"}';
$.each(result, function(k, v) {
             //display the key and value pair
            alert(k + ' is ' + v);
        });

There is no mandatory jQuery requirement, but it is available. I can also restructure the JSON if it cuts down the required code.

The following should work for a JSON returned string. It will also work for an associative array of data.

for (var key in data)
     alert(key + ' is ' + data[key]);

var obj = $.parseJSON(result);
for (var prop in obj) {
    alert(prop + " is " + obj[prop]);
}

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var rs = '{"test" : "Got it perfect!","message" : "Got it!"}';
eval("var toObject = "+ rs + ";");
alert(toObject.message);

Parse the JSON string and you can loop through the keys.

var resultJSON = '{"FirstName":"John","LastName":"Doe","Email":"[email protected]","Phone":"123 dead drive"}';_x000D_
var data = JSON.parse(resultJSON);_x000D_
_x000D_
for (var key in data)_x000D_
{_x000D_
    //console.log(key + ' : ' + data[key]);_x000D_
    alert(key + ' --> ' + data[key]);_x000D_
}

You can get the values directly in case of one array like this:

var resultJSON = '{"FirstName":"John","LastName":"Doe","Email":"[email protected]","Phone":"123 dead drive"}';
var result = $.parseJSON(resultJSON);
result['FirstName']; // return 'John'
result['LastName'];  // return ''Doe'
result['Email']; // return '[email protected]'
result['Phone'];  // return '123'