Date.prototype.setDate()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The setDate()
method of Date
instances changes the day of the month for this date according to local time.
Try it
Syntax
setDate(dateValue)
Parameters
dateValue
-
An integer representing the day of the month.
Return value
Changes the Date
object in place, and returns its new timestamp. If dateValue
is NaN
(or other values that get coerced to NaN
, such as undefined
), the date is set to Invalid Date and NaN
is returned.
Description
If you specify a number outside the expected range, the date information in the Date
object is updated accordingly. For example, if the Date
object holds June 1st, a dateValue
of 40 changes the date to July 10th, while a dateValue
of 0 changes the date to the last day of the previous month, May 31st.
Examples
Using setDate()
const theBigDay = new Date(1962, 6, 7, 12); // noon of 1962-07-07 (7th of July 1962, month is 0-indexed)
const theBigDay2 = new Date(theBigDay).setDate(24); // 1962-07-24 (24th of July 1962)
const theBigDay3 = new Date(theBigDay).setDate(32); // 1962-08-01 (1st of August 1962)
const theBigDay4 = new Date(theBigDay).setDate(22); // 1962-07-22 (22nd of July 1962)
const theBigDay5 = new Date(theBigDay).setDate(0); // 1962-06-30 (30th of June 1962)
const theBigDay6 = new Date(theBigDay).setDate(98); // 1962-10-06 (6th of October 1962)
const theBigDay7 = new Date(theBigDay).setDate(-50); // 1962-05-11 (11th of May 1962)
Specifications
Specification |
---|
ECMAScript Language Specification # sec-date.prototype.setdate |
Browser compatibility
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