What is a less verbose way of checking for null?

What is a less verbose way of checking for null?

I had this function:

  1. function populategeneratevals(generateddata) {
                        var domOrdinalified = ordinalify(generateddata.generatevals.DayOfMonth);
                        $("#dayofmonthselect").val(domOrdinalified);
                        $("#ordinalselect").val(generateddata.generatevals.PatternOrdinal);
                        $("#dayofweekselect").val(generateddata.generatevals.PatternDOW);
                        $("#weekormonthselect").val(generateddata.generatevals.PatternInterval);

                        // Now set the correct radio button
                        if (generateddata.generatevals.DayOfMonth !== 0) {
                            $("#groupRptGenerationAndSendingByDayOfMonth").prop("checked", true);
                        } else {
                            $("#groupRptGenerationAndSendingBasedOnAPattern").prop("checked", true);
                        }
    }

...which turned out to be problematic when any of the values referenced were null. So I came up with this:

  1. function populategeneratevals(generateddata) {
    if (null == generateddata) return;
    if (null == generateddata.generatevals) return;
    if (null !== generateddata.generatevals.DayOfMonth) {
    var domOrdinalified = ordinalify(generateddata.generatevals.DayOfMonth);
    $("#dayofmonthselect").val(domOrdinalified);
             if (generateddata.generatevals.DayOfMonth !== 0) {
                $("#groupRptGenerationAndSendingByDayOfMonth").prop("checked", true);
             } else {
                $("#groupRptGenerationAndSendingBasedOnAPattern").prop("checked", true);
             }
    }

    if (null !== generateddata.generatevals.PatternOrdinal) {
        $("#ordinalselect").val(generateddata.generatevals.PatternOrdinal);
    }

    if (null !== generateddata.generatevals.PatternDOW) {
        $("#dayofweekselect").val(generateddata.generatevals.PatternDOW);
    }

    if (null !== generateddata.generatevals.PatternInterval) {
        $("#weekormonthselect").val(generateddata.generatevals.PatternInterval);
    }
    }

This seems kind of white-glovish or even paranoid to me; is there a less obtrusive/verbose way of checking values for null than explicitly checking them all like this?