How to parse JSON in javascript

SoapUI 5.3 uses an older version of the Rhino engine (1.7R2) that does not support JSON.parse(), but there are a couple of workarounds.

Option 1: use eval()

var str = '{"foo": "bar"}';
var obj = eval('(' + str + ')');
log.info(obj.foo);

Option 2: Update Rhino engine and use JSON.parse()

1. Download the latest version of Rhino from here:
   https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Rhino/Download_Rhino
2. In the <SoapUI>\lib folder, replace js-1.7R2.jar with js-<ver>.jar from the downloaded archive.
3. Restart SoapUI.

Now you can use JSON.parse():

var str = '{"foo": "bar"}';
var obj = JSON.parse(str);
log.info(obj.foo);