我有一个网页,里面有ASP.NET板和JavaScript, 里面有网页上的所有内容:
var items = Sys.Application.getComponents();
我需要获得项目变量中每个元素的名称/ ID 。 我尝试了以下代码 :( 但它不起作用 )
for (var item in items)
{
alert(item.name);
}
名称/ ID 包含项目属性是什么? 我如何修改上述代码来做到这一点?
我有一个网页,里面有ASP.NET板和JavaScript, 里面有网页上的所有内容:
var items = Sys.Application.getComponents();
我需要获得项目变量中每个元素的名称/ ID 。 我尝试了以下代码 :( 但它不起作用 )
for (var item in items)
{
alert(item.name);
}
名称/ ID 包含项目属性是什么? 我如何修改上述代码来做到这一点?
代之以使用 get_name ()
和 get_id ()
函数 。
var items = Sys.Application.getComponents() ;
for( var i = 0 ; i < items.length; i++ ) {
var item = items[i];
var id = item.get_id();
var name = item.get_name();
}
无。 item
is the key/ property 所以您想要 items[item].name
。
但是,如果 items
是一个数组, 使用 for. in
进行循环处理是完全不适当的。 在此情况下, 使用 for( var i= 0; i< items. larth; i++)
和 var ites= items[i]
在环体内使用 < code> for( var i= 0; i< items. plan; i++) 和 var ite= itets[i]
。
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