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JavaScript: return statement

Description

The return statement returns a value and exits from the current function.

Version

Implemented in JavaScript 1.0

Syntax

return expression 

Parameters

expression: The expression to return. If not present, the function does not return a value.

Example:

In the following web document rectangle_area() function returns the area of a rectangle.

HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8>
<title>JavaScript return statement :  Example-1</title>
<script type="text/javascript">
function rectangle_area(h,w)
{
return h*w;
}
</script>
</head>
<body>
<h1 style="color: red">JavaScript : return statement</h1>
<hr />
<script type="text/javascript">
console.log("Area of the Rectangle " +rectangle_area(400,300)+" sq.ft.");
</script>
</body>
</html>

View the example in the browser

Practice the example online

See the Pen return-1 by w3resource (@w3resource) on CodePen.


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JavaScript: Tips of the Day

How do I redirect to another webpage?

window.location.replace(...) is better than using window.location.href, because replace() does not keep the originating page in the session history, meaning the user won't get stuck in a never-ending back-button fiasco.

If you want to simulate someone clicking on a link, use location.href

If you want to simulate an HTTP redirect, use location.replace.

// similar behavior as an HTTP redirect
window.location.replace("http://stackoverflow.com");

// similar behavior as clicking on a link
window.location.href = "http://stackoverflow.com";

Ref: https://bit.ly/37JdWH8