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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
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fscholz
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