Robert 的部落格

如果使用比較運算子:「==」、「!=」、「===」、「!==」,需要先使用「date.getTime()」,
例如:

 var d1 = new Date();
 var d2 = new Date(d1);
 var same = d1.getTime() === d2.getTime();
 var notSame = d1.getTime() !== d2.getTime();

建立 Date 物件:

• 語法

  new Date(); new Date( value ); new Date( dateString ); new Date( year, month [, day [, hours [, minutes [, seconds [, milliseconds] ] ] ] ] );

   

• 範例

   var today = new Date();
   var birthday = new Date('December 17, 1995 03:24:00');
   var birthday = new Date('1995-12-17T03:24:00');
   var birthday = new Date(1995, 11, 17);
   var birthday = new Date(1995, 11, 17, 3, 24, 0);

參考:
  Compare two dates with JavaScript - Stack Overflow
  Date - JavaScript MDN