Cant make a query "Payroll" filter the "tankJobs" field for empty and greater than 0

//////////// Dropdown Filter ////////////

function dropdownFilter() {
    const value1 = $w("#datePicker2").value;
    const value3 = $w("#datePicker3").value;
    const value2 = new Date(value3.getTime());
    value2.setDate(value3.getDate() + 1);

    const sortOptions = $w('#sortDropdown').value;
    const filterOptions = $w('#filterDropdown').value;
    const filterJobStatus = $w('#dropdownJobStatus').value;

    let query = wixData.query('Payroll')
        .between('date', value1, value2)
        .descending(sortOptions).descending('weekNumber').ascending('driver').ascending('date')
        .limit(1000);

    if (filterJobStatus !== "All") {
        query = query.eq("jobStatus", filterJobStatus);
    }

    if (filterOptions === 'tankJobs' || filterOptions === 'extraLoads') {
        query = query.isNotEmpty(filterOptions).gt(filterOptions, 0);
    }

    if (filterOptions !== 'Default' && !['border1', 'border2', 'border3', 'border4', 'border5', 'border6'].includes(filterOptions)) {
        query = query.contains('workStatus', filterOptions)
            .or(wixData.query('Payroll').between('date', value1, value2).contains('driverDepartment', filterOptions))
            .or(wixData.query('Payroll').between('date', value1, value2).contains(filterOptions, "Yes"));
    }

    query.find()
        .then(res => {
            $w("#table1").pagination = {"type": "pagination", "rowsPerPage": 20};
            $w('#table1').rows = res.items;
            $w('#text2').text = res.items.length.toString();
            if (res.items.length === 0) {
              $w('#text1').show();
                setTimeout(() => {$w("#text1").hide("fade");}, 800);
            }
        })
        .catch((err) => {
            let errorMsg = err;
        });
}

//////////// Dropdown Filter ////////////

What are you trying to achieve:
Cant make a query “Payroll” filter the “tankJobs” field for empty and greater than 0

What have you already tried:

    if (filterOptions === 'tankJobs' || filterOptions === 'extraLoads') {
        query = query.isNotEmpty(filterOptions).gt(filterOptions, 0);
    }

Additional information:
filterOpitons is a values pulled from Droprdown menu (Label: Tank Jobs, Value: tankJobs), In dataset “tankJobs” and “extraLoads” - IDs of the columns (Type: Number) to look in

You might want to check what the value of filterOptions is since otherwise this code looks fine to me.