ThevalueOf() method ofSymbol values returns this symbol value.

Try it

const symbol = Symbol("foo");console.log(typeof Object(symbol));// Expected output: "object"console.log(typeof Object(symbol).valueOf());// Expected output: "symbol"

Syntax

valueOf()

Parameters

None.

Return value

The primitive value of the specifiedSymbol object.

Description

ThevalueOf() method ofSymbol returns the primitive value of a Symbol object as a Symbol data type.

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

Examples

Using valueOf()

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

Specifications

Browser compatibility

See also

• Object.prototype.valueOf()