Symbol.prototype.valueOf()

The valueOf() method returns the primitive value of a Symbol object.

Syntax

Symbol().valueOf();

Return value

The primitive value of the specified Symbol object.

Description

The valueOf method of Symbol returns the primitive value of a Symbol object as a Symbol data type.

JavaScript calls the valueOf method to convert an object to a primitive value. You rarely need to invoke the valueOf method yourself; JavaScript automatically invokes it when encountering an object where a primitive value is expected.

Specifications

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Symbol.prototype.valueOf' in that specification.
Standard Initial definition.
ECMAScript 2017 Draft (ECMA-262)
The definition of 'Symbol.prototype.valueOf' in that specification.
Draft  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) 36.0 (36.0) No support No support No support
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) 36.0 (36.0) No support No support No support

See also

Document Tags and Contributors

 Contributors to this page: eduardoboucas, fscholz
 Last updated by: eduardoboucas,