Question

I have this:

var testArray = [];
testArray["First"] = "First Test Data";
testArray["Second"] = "Second Test Data";
$.toJSON(testArray);

I then pass it back to server side. When I look at the object server side in handling the AJAX request all I have is “[]”.

Is there a way to do this or something similar to achieve the ability to look up data passed back from the client?

Answer 1

You are creating an array, but then you are using it as an object. Create an object instead, and it will be handled correctly:

var testObject = {};
testObject["First"] = "First Test Data";
testObject["Second"] = "Second Test Data";
$.toJSON(testObject);

or simply:

var testObject = {
  First: "First Test Data",
  Second: "Second Test Data"
};
$.toJSON(testObject);

If you really want an array, then you access the items using numbers, not strings:

var testArray = [];
testArray[0] = "First Test Data";
testArray[1] = "Second Test Data";
$.toJSON(testArray);

or simply:

var testArray = ["First Test Data", "Second Test Data"];
$.toJSON(testArray);