Glad to see some of the good bits making their way back in. The number of times I've had to do

    function(firstParam, secondParam, thirdParam) {
        if (firstParam.hasOwnProperty('firstParam') {
            var argumentDict = firstParam;
            firstParam = argumentDict['firstParam'];
            secondParam = argumentDict['secondParam'];
            thirdParam = argumentDict['thirdParam'];
        }
        
        firstParam = firstParam || "default value";
        ...