Return a value from an jQuery ajax function

Answer 1

What you want to do is split them up... Provide a success function for your request to call when it returns, and then take action based on the response.

i.e.

$.ajax({
    type: 'POST',
    url: 'formService.asmx/RemoveFieldOption',
    contentType: 'application/json; charset=utf-8',
    data: "{'fieldId':'1', 'optionId':'1'}",
    dataType: 'json',
    success: action_removeFieldOptionPass,
    error: ajaxTestFail
});

function action_removeFieldOptionPass(result) {
    $('#whatever').html(result);
}