JavaScript setTime()Method: Date Object

Last update on August 19 2022 21:50:38 (UTC/GMT +8 hours)

Description

The setTime() method is used to set the value of a Date object according to local time.

Version

Implemented in JavaScript 1.0

Syntax

setTime(timevalue)

Parameter

timevalue: An integer representing the number of milliseconds since 1 January 1970 00:00:00.

Example:

In the following web document setTime() method sets a date using milliseconds.

<!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 - setTime() method example</title>
</head>
<body>
<h1 style="color: red">JavaScript date object : setTime() method</h1>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
user_date = new Date("August 12, 1992 21:20:00")
new_date = user_date.setTime(34532344);
//]]>
</script>
</body>
</html>

Supported Browser

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

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Next: JavaScript setUTCdate() 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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