作用：和java类似，不过我觉得挺鸡肋的。哈哈，个人见解。。。
上代码：123.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript">
function throwsNew(){
try{
throw new Error(10,"asdasdasd") ;
}catch(e){
alert(e.message);
alert(e.description)
alert(e.number)
alert(e.name)
throw new Error(10,"asdasdasd")
}
}
function throwsDate(){
try {
throw new Date(); // 抛出当前时间对象
} catch (e) {
alert(e.message);
alert(e.description)
alert(e.number)
alert(e.name)
alert(e.toLocaleString()); // 使用本地格式显示当前时间
}
}
</script>
</head>
<body>
<a href="javascript:throwsNew()">抛异常</a>
<a href="javascript:throwsDate()">抛异常</a>
</body>
</html>