如何用jQuery获取选中行固定列的数据

// 多选后点击下线按钮
$("#offline").click(function () {
    var idList = [];
    $("tr.danger").each(function () {
        idList.push($(this).children("td:eq(1)").text());
    });
    // console.log(idList);
    $.ajax({
        type: 'POST',
        url: "请求路径",
        data: {
            "idList": idList,
            ...
        },
        success: function () {
            window.location.reload();
        }
    });
});