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JavaScript setUTCHours() Method: Date Object

Description

The setUTCHours() method is used to set the hour for a specified date according to Coordinated Universal Time (UTC).

Version

Implemented in JavaScript 1.3

Syntax

setUTCHours(hoursValue, minutesValue, secondsValue, msValue)

Parameter

hoursValue: An integer between 0 and 23, representing the hour.

minutesValue: An integer between 0 and 59, representing the minutes.

secondsValue: An integer between 0 and 59, representing the seconds. If you specify the secondsValue parameter, you must also specify the minutesValue.

msValue: A number between 0 and 999, representing the milliseconds. If you specify the msValue parameter, you must also specify the minutesValue and secondsValue.

javas script date object setutchours method

Example:

In the following web document the hour is set to 15, 23 etc. by setUTCHours() method.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<title>JavaScript date object - setUTCHours() method example</title>
</head>
<body>
<h1 style="color: red">JavaScript date object : setUTCHours() 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("Initial Hour  : "+user_date+"<BR />")
user_date.setUTCHours(15)
document.write("After changing the current hour to 15 : "+user_date+"<BR />")
user_date= new Date()
user_date.setUTCHours(23)
document.write("After changing the current hour to 23 : "+user_date+"<BR />")
//]]>
</script>
</body>
</html>

View the example 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.

Previous: JavaScript setUTCfullyear() Method: Date Object
Next: JavaScript setUTCMilliseconds() Method: Date Object

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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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