How to use setDate in JavaScript

Posted in JavaScript | JavaScript Objects on August 06, 2019

In this article, I will explain use of setDate() method in JavaScript date object.

JavaScript setDate() method

setDate() method of date obeject sets the day of the month for a given date according to local time.

Syntax

Date.setDate(dayValue)

dayValue is an integer from 1 to 31, representing the day of the month.
If dayValue is 0. it will result in the last hour of the previous month
If dayValue is -1. it will result in the hour before the last hour of the previous month

Example

In the following example show to setDate() method sets the day of the month.

<!DOCTYPE html>

<html>

<body>

<h3 style="color:Teal ">JavaScript setDate() Method Example</h3>

<p id="demo">Click the button to display a specified date after changing the day of the month.</p>

function myFunction() {

var d = new Date("July 21, 1983 01:15:00");

d.setDate(15);

var x = document.getElementById("demo");

x.innerHTML = "Privious Date is : July 21, 1983 01:15:00 <br> After Set date is : " + d;

}

</script>

</body>

</html>

Output1

Output2

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