如何在JavaScript中更改日期格式

Question

  

可能重复：
  Formatting a date in javascript

我有这个：

HTML

Start Date:  <input type="date" id="startDate" name="startDate" ></p>

的JavaScript

var  mydate = new Date(form.startDate.value);

之后，mydate变为

"05/05/2010"

现在，我想将此格式更改为

May 2010

有没有办法在JavaScript中执行此操作？

Answer 1

你当然可以自己格式化日期..

var mydate = new Date(form.startDate.value);
var month = ["January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"][mydate.getMonth()];
var str = month + ' ' + mydate.getFullYear();

您还可以使用外部库，例如DateJS。

这是一个DateJS示例：

<script src="http://www.datejs.com/build/date.js" type="text/javascript"></script>
<script>
   var mydate = new Date(form.startDate.value);
   var str = mydate.toString("MMMM yyyy");
   window.alert(str);
</script>

Answer 2

使用Datejs库，这可以很简单：

Date.parse("05/05/2010").toString("MMMM yyyy");
//          parse date             convert to
//                                 string with
//                                 custom format

Answer 3

var month = mydate.getMonth(); // month (in integer 0-11)
var year = mydate.getFullYear(); // year

然后您需要拥有的是几个月的数组：

var months = ['Jan', 'Feb', 'Mar', ...];

然后展示它：

alert(months[month] + "  " + year);

Answer 4

尝试 -

var monthNames = [ "January", "February", "March", "April", "May", "June",
    "July", "August", "September", "October", "November", "December" ];

var newDate = new Date(form.startDate.value);
var formattedDate = monthNames[newDate.getMonth()] + ' ' + newDate.getFullYear();

Answer 5

使用你的mydate对象并调用getMonth（）和getFullYear（）

有关详情，请参阅此处： http://www.w3schools.com/jsref/jsref_obj_date.asp