Symbol.prototype[Symbol.toPrimitive]()

The [Symbol.toPrimitive]() method of Symbol values returns this symbol value.

Syntax

symbolValue[Symbol.toPrimitive](hint)

Parameters

hint: A string value indicating the primitive value to return. The value is ignored.

Return value

The primitive value of the specified Symbol object.

Description

The [Symbol.toPrimitive]() method of Symbol returns the primitive value of a Symbol object as a Symbol data type. The hint argument is not used.

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

Examples

undefined

Using `[Symbol.toPrimitive]()`

const sym = Symbol("example");
sym === sym[Symbol.toPrimitive](); // true

Specifications

ECMAScript® 2027 Language Specification