Symbol.prototype.valueOf()
The valueOf()
method returns the primitive value of a Symbol object.
Syntax
JavaScript
Copy Code
<var>Symbol().valueOf(); </var>
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
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/symbol/valueof