1.js判断对象是否为空

function IsNullOrEmpty(str) {    var isOK = true;    if (str == undefined || str == "") {        isOK = false;    }    return isOK;}

2.js获取当前时间

var now = new Date();    var hour = now.getHours();

3.js前台不断显示当前时间

      Stop interval  

 4.刷新时的弹出层

/**中间加载对话窗**/function Loading(bool) {    if (bool) {        top.$("#loading").show();    } else {        setInterval(loadinghide, 800);    }}function loadinghide() {    top.$("#loading").hide();}

5.一条不错的oracle语句，作用两行数据合并显示在一行(若是sqlServer，则将“||” 改成“+”)

SELECT Roles_ID,       Roles_Name || ' - ' || CASE ParentId         WHEN '0' THEN          '父节'         ELSE          '子节'       END AS Roles_Name  FROM Base_Roles WHERE DeleteMark = 1 ORDER BY SortCode ASC

 

6.jquery操作checkbox(选中、取消、取值)

                 
                                     
      
      
             
             
             
             
             
       
      
             checkbox1      
             checkbox2      
             checkbox3      
             checkbox4      
             checkbox5      
             checkbox6      
             checkbox7      
           checkbox8