function Compare(objA, objB) {    if (!isObj(objA) || !isObj(objB)) return false; //判断类型是否正确    if (getLength(objA) != getLength(objB)) return false; //判断长度是否一致    return CompareObj(objA, objB, true);//默认为true}

//获取对象的lengthfunction getLength(object) {    var count = 0;    for (var i in object) count++;    return count;}

function CompareObj(objA, objB, flag) {    for (var key in objA) {        if (!flag){            break;//flag为false，无需比较，跳出整个循环        }        if (!objB.hasOwnProperty(key)) {             flag = false;             break;         }        if (!isArray(objA[key])){
    //子级不是数组时,比较属性值            if (objB[key] != objA[key]) {                flag = false;                 break;             }        } else {            if (!isArray(objB[key])) {                 flag = false;                 break;             }            var oA = objA[key], oB = objB[key];            if (oA.length != oB.length) {                 flag = false;                 break;             }               for (var k in oA) {                if (!flag) //这里跳出循环是为了不让递归继续                break;                flag = CompareObj(oA[k], oB[k], flag);            }        }    }    return flag;}

function isObj(object) {    return object && typeof (object) == 'object' && Object.prototype.toString.call(object).toLowerCase() == "[object object]";}function isArray(object) {    return object && typeof (object) == 'object' && object.constructor == Array;}

 

实例：

//添加修改服务列表数据        $("#addWindow").bind("click", function() {            var fileType = $("input[type='radio'][name='fileType']:checked").val();            var filePath = $("#filePath_id").val();            var fileExtType = $("#fileExtType_hidden").val();            var _privilege_str = "";            $("input[name='privilege']:checked").each(function() {                _privilege_str += $(this).val();            });                                    //必填项校验            var alert_msg = "";            var filePathRequried = '[
     ]
     ';            if (fileType != TYPE_ALLFILE) {                if (filePath == "") {                    alert_msg = filePathRequried;                }            }                if (!checkPath(filePath)) {                    dialogMsg("非法文件夹路径！", -1);                    return false;                }                if (alert_msg != "") {                    dialogMsg(alert_msg, -1);                    return false;                }                //添加                var dataObj = {                        type : fileType,                        filePath : filePath,                        fileExtType : fileExtType,                        privilege : _privilege_str                    };                                var dataList = $("#protectFileList_table").jqGrid("getRowData");                var num = dataList.length;                if (operate == "add") {                    for (var i = 0; i < dataList.length; i++) {                        if (Compare(dataObj,dataList[i])) {                            dialogMsg("添加的数据重复！", -1);                            return;                        }                    }                    $("#protectFileList_table").jqGrid("addRowData", num + 1, dataObj);                    i++;                } else {                    //修改                    var id = $("#protectFileList_table").jqGrid('getGridParam', 'selrow');                    dataList.splice(id-1, 1);                    for (var i = 0; i < dataList.length; i++) {                        if (Compare(dataObj,dataList[i])) {                            dialogMsg("编辑的数据重复！", -1);                            return;                        }                    }                    $("#protectFileList_table").jqGrid("setRowData", id, dataObj);                }                $("#protectFileList_window").modal("hide");                var data = $("#protectFileList_table").jqGrid("getRowData");                $("#protectFileList_hidden").val(JSON.stringify(data));                    });