Pure JavaScript

Boolean.valueOf()

JavaScript1.1+, JScript3.0+, ECMAScript1.0+ NES2+, Nav3+, IE4+, Opera3+ Syntax

							boolean.valueOf()

Description

The valueOf() method returns the primitive value of the object. In terms of an instance of a Boolean object, this method returns a Boolean value contained in the object.

Example

Listing 6.67 creates a Boolean object representing true. Because the valueOf() method returns the Boolean value in the object, "true" is written to the browser.

Listing 6.67 Using the valueOf() Method to Return the Value of the Boolean Object

<script language="JavaScript"> <!–– Hide //Create a Boolean object representing true bool = new Boolean(1); //Display the source of the Boolean object document.write(bool.valueOf()); // End hide ...