4.入門第四課:javascript日付の対象


     js     ,              ,                 ,                :
<script type="text/javascript">
var d=new Date();//         
//                
document.write(d.getFullYear());
document.write(d.getMonth());
document.write(d.getDate());
document.write(d.getHours());
document.write(d.getMinutes());
document.write(d.getSeconds());
document.write(d.getMilliseconds());
//                
var d1=new Date();
d1.setFullYear(1980);
d1.setMonth(10);
d1.setDate(10);
d1.setHours(9);
d1.setMinutes(10);
d1.setSeconds(10);
d1.setMilliseconds(100);
//         ,      ,   true
document.write(d>d1);
</script>
以下は日付の実用関数です.
//                     
function dtoS(d){
var s="";
s+=(d.getFullYear()+" ");
s+=((d.getMonth()+1)+" ");
s+=(d.getDate()+" ");
s+=(" "+d.getHours()+":");
s+=(" "+d.getMinutes()+":");
s+=(" "+d.getSeconds());
return s;
}
var d=new Date();
var s=dtoS(d);//   :2013 9 22  10: 37: 59