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JavaScript method setDate() to set a certain day of the month

黄舟Original: 2017-11-07 10:12:562089browse

Definition and usage

setDate() method is used to set a certain day of the month.

Syntax

dateObject.setDate(day)

Parameters	Description
day	Required. A numerical value (1 ~ 31) representing a day of the month.

Return value

Adjusted date expressed in milliseconds. Before ECMAScript was standardized, this method returned nothing.

Tips and Notes:

Note: This method is always used in conjunction with a Date object.

Example

In this example, we will set the day of the current month to 15 through the setDate() method:

<script type="text/javascript">

var d = new Date()
d.setDate(15)
document.write(d)

</script>

Output:

Wed Nov 15 2017 10:11:54 GMT+0800 (中国标准时间)

Example:

The second statement below changes from the original value to August 24.

<html>
<head>
<title>JavaScript setDate Method</title>
</head>
<body>
<script type="text/javascript">
  var dt = new Date( "Aug 28, 2008 23:30:00" );
  dt.setDate( 24 );
  document.write( dt ); 
</script>
</body>
</html>

This will produce the following results:

Sun Aug 24 23:30:00 UTC+0530 2008

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JavaScript method setDate() to set a certain day of the month

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