JQuery 杂项

1、用jquery从多个条件中 取某个值  //SB.configXml为配置文件

var showCheckedTicker = $j(SB.configXml).find("root tools t[id='PG'][type='PA']").attr("showChecked");

 

2将条件符合的checkbox选中，匹配条件的数据保存在TableCheckedTicker中，document为上下文，或者某个div也可以$（'#divid')

$j(":checkbox[id='chk" + TableCheckedTicker[i] + "']", document).attr("checked",true); 

 

3数组出数据，从数组selectIndex.pop中出数据

AM_TABLE.selectIndex.pop();

 

4、正则表达式

var reg = new RegExp("\\*","g");  与 var reg = /\*/g; 是等价的

str = str.replace(reg," ");//将字符串中的所有*替换成空格

 

5、遍历查询xml的数据，进行处理

 jQuery(SB.postData).find("Securities Security").each(function ()
{
    var node=jQuery(this);
    var secid = node.attr("securityid");
    var ticker = node.attr("ticker");
    var dtcccode = node.attr("dtcccode");                      
   
    if(dtcccode != null && dtcccode != "")
    {
        if((secid==undefined || secid == "undefined") && (ticker==undefined|| ticker == "undefined"))
        {                                  
            node.remove();
        }
        else
        {
            node.removeAttr("dtcccode");
        }                             
      
    }
});            

 

 

6在xml中循环遍历查找所有的某个节点

jQuery(SB.postData).find("Security").each(function ()
{
    var node=jQuery(this);
    var secid = node.attr("securityid");
    var ticker = node.attr("ticker");
    var dtcccode = node.attr("dtcccode"); 
    var isMappingDtcc = node.attr("isMappingDtcc");
    var isDtccCode = node.attr("isDtccCode");
    var dtccKey = node.attr("Dtcckey");
                         
   
    if(isMappingDtcc == "1" && (isDtccCode != ""|| isDtccCode ==null ||isDtccCode ==undefined || isDtccCode=="undefined" ))
    {
        if((secid==undefined || secid == "undefined") && (ticker==undefined|| ticker == "undefined"))
        {                                  
            node.remove();
        }
        else
        {
            node.removeAttr("dtcccode");
            node.removeAttr("isMappingDtcc");
            node.removeAttr("Dtcckey");
        }                             
      
    }
});

 

7、得到iframe之外的一个html控件的值

I have an iframe and I wrote this code

window.parent.document.getElementById('parentPrice').innerHTML 
to access parent element. How to get the same result using jquery?
Or how to access iFrame parent page using jquery?

答案：$('#parentPrice', window.parent.document).html();  //jquery object

$('#parentPrice', window.parent.document)[0].Id;  // dom object

 8.blog:

http://www.cnblogs.com/zhangziqiu/tag/jQuery/