js委托父元素点击事件常用写法,regexp等常用js代码段

div.oncilck=function(e)
{
var e= e||window.event;
var tar =e.target||e.srcElement;
if(tar.nodeName.toLowerCase()=="span")
{
dosomting();
}
}

str.replcce(/(\d+)/g,function(match,key){

return data[key];

})