jQuery:查找所有可见的必填字段
问题描述：
我正在尝试查找所有具有required属性的字段，它们也应为visible.因为页面也可以隐藏必填字段.这是我尝试过的:
I am trying to find all the fields with required attribute and they should be visible too. Because page can have hidden required fields too. Here is what I tried:
function validateRequiredFields()
{
$('input,textarea,select').attr('required',true).filter(':visible:first').each(function(i, requiredField){
if($(requiredField).val()=='')
{
alert($(requiredField).attr('name'));
}
});
}