The valueOf()
method returns the primitive value of a Boolean
object.
Syntax
bool.valueOf()
Return value
The primitive value of the given Boolean
object
Description
The valueOf
method of Boolean
returns the primitive value of a Boolean
object or literal Boolean
as a Boolean data type.
This method is usually called internally by JavaScript and not explicitly in code.
Examples
Using valueOf
x = new Boolean(); myVar = x.valueOf(); // assigns false to myVar
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.1. |
ECMAScript 5.1 (ECMA-262) The definition of 'Boolean.prototype.valueOf' in that specification. |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Boolean.prototype.valueOf' in that specification. |
Standard | |
ECMAScript Latest Draft (ECMA-262) The definition of 'Boolean.prototype.valueOf' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | Yes | Yes | Yes |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
See also
Document Tags and Contributors
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Contributors to this page:
schalkneethling,
fscholz,
jameshkramer,
eduardoboucas,
Mingun,
Sheppy,
evilpie,
Yuichirou,
Thammi,
Maian,
Marcoos,
Dria
Last updated by:
schalkneethling,