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JavaScript Tutorial

JavaScript constructor Property: Number Object

Description

The constructor property of the number object specifies the function that creates an object's prototype.

Version

Implemented in JavaScript 1.1

Syntax

Number.constructor

Number: The name of the object (Required)

Example:

In the following web document, the constructor property returns the reference to the function that creates the object.

<!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 Number object - constructor property example</title>
</head>
<body>
<h1 style="color: red">JavaScript Number object : constructor property</h1>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
var mystring =  new Number(12);
document.write("The object is constructed from : "+mystring.constructor); 
//]]>
</script>
</body>
</html>

View the example in the browser

Online Practice Editor

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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