JavaScript setUTCfullyear() Method: Date Object


The setUTCfullYear() method is used to set the full year for a given date according to Coordinated Universal Time (UTC).


Implemented in JavaScript 1.3


setUTCfullYear(yearValue, monthValue, dayValue) 


yearValue: Required.

The numeric value of the year, for example, 1991.

monthValue: An integer between 0 and 11 where January represents 0, February represents 1 ..... December represents 11.

dayValue:  An integer between 1 and 31 represents the day of the month. Without specifying monthValue parameter you can not specify the dayValue.

The values returned from the getMonth and getDate methods are used when you do not specify the monthValue and dayValue parameters. If a specified parameter is outside the expected range, setUTCDate try to update the date information in the Date object accordingly. For example, if you use 47 for day value, and the month stored in the Date object is June, the day will be changed to 17 and the month will be next of June i.e. July.

javas script date object setutcfullyear method


In the following web document setUTCFullYear() method sets the year to 1989.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<title>JavaScript date object - setUTCFullYear() method example</title>
<h1 style="color: red">JavaScript date object : setUTCFullYear() method</h1>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
user_date = new Date()
document.write("Current Date : "+user_date+"<BR />")
document.write("After changing the current year to 1989 : "+user_date+"<BR />")

View the example of in the browser

Supported Browser

Internet Explorer 7 Firefox 3.6 Google Chrome 7 Safari 5.0.1 Opera 10
Yes Yes Yes Yes Yes

See also:

JavaScript Core objects, methods, properties.

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JavaScript: Tips of the Day

Reduce method

[1, 2, 3, 4].reduce((x, y) => console.log(x, y));

The first argument that the reduce method receives is the accumulator, x in this case. The second argument is the current value, y. With the reduce method, we execute a callback function on every element in the array, which could ultimately result in one single value.
In this example, we are not returning any values, we are simply logging the values of the accumulator and the current value.
The value of the accumulator is equal to the previously returned value of the callback function. If you don't pass the optional initialValue argument to the reduce method, the accumulator is equal to the first element on the first call.
On the first call, the accumulator (x) is 1, and the current value (y) is 2. We don't return from the callback function, we log the accumulator and current value: 1 and 2 get logged.
If you don't return a value from a function, it returns undefined. On the next call, the accumulator is undefined, and the current value is 3. undefined and 3 get logged.
On the fourth call, we again don't return from the callback function. The accumulator is again undefined, and the current value is 4. undefined and 4 get logged.

Ref: https://bit.ly/323Y0P6


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