9.2.2 constructor属性.html

javascript即用即差核心对象手册

<script>
   var objdate=new Date(2005,6,3);
   document.write("objdate的构造函数为"+objdate.constructor)
   document.write("<br>");
   if(objdate.constructor==Date)
       document.write("objdate为Date对象实例");
</script>