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Symbol.prototype.valueOf()

The valueOf() method of Symbol values returns this symbol value.

Try it

Syntax

js
valueOf()

Parameters

None.

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.

Examples

Using valueOf()

js
const sym = Symbol("example");
sym === sym.valueOf(); // true

Specifications

Specification
ECMAScript Language Specification
# sec-symbol.prototype.valueof

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android Deno Node.js
valueOf 38 12 36 25 9 38 36 25 9 3.0 38 1.0 0.12.0

See also

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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