Jquery操作js数组及对象示例代码

贴一段jquery对js对象及数组的操作：增删改查的代码。

. 代码如下:

var worklist = new array();//数组对象
//下面是自己定义的实体
function workex(depart, title, begintime, endtime) {
    this.sid = 0;
    this.id = -(worklist.length+1);
    this.departmentname = depart;
    this.title = title;
    this.begintime = begintime;
    this.endtime = endtime;
    this.description = "";
    this.enable = 0;
    return this;
}
function deletework(guid) {
      worklist = $.grep(worklist, function (val, key) {
          return val.id != guid;
    });
      showwork();
}
function showwork() {
    var html = "";
    $.each(worklist, function (key, val) {
        html = html + " <span class=\"add_work_unit\">" + val.departmentname + ":" + val.title
            + ",任职时间：" + getjsdate(val.begintime) + "到" + getjsdate(val.endtime) + "<a href=\"#\" onclick='deletework(\"" + val.id + "\")'>×</a></span>";
    });
    $("#tdworklist").html(html);
}
function addwork() {
    if(checkisnull("workaddress","工作地址不能为空")
        && checkisnull("worklevel", "职责不能为空")
        && checkisnull("workbegin", "工作开始日期不能为空")
        && checkisnull("workleave", "工作结束日期不能为空")
        )
    {
        var isok = true;
        $.each(worklist, function (key, val) {
            if (val.departmentname == $("#workaddress").val()
              && val.title == $("#worklevel").val()
                && val.begintime == $("#workbegin").val()
                 && val.endtime == $("#workleave").val()
                )
            {
                alert("存在相同的工作经历。"); isok= false;
            } 
        });
        if (isok){
                var onework = new workex($("#workaddress").val(), $("#worklevel").val(),
                        $("#workbegin").val(), $("#workleave").val())
                worklist.push(onework);
                //  <span class="add_work_unit">四川省乐天区某某制药厂<a href="#">×</a></span>
                showwork();
        }
    }
}