Number.prototype.valueOf()

The valueOf() method of Number values returns the value of this number.

Try it

const numObj = new Number(42);
console.log(typeof numObj);
// Expected output: "object"

const num = numObj.valueOf();
console.log(num);
// Expected output: 42

console.log(typeof num);
// Expected output: "number"

Syntax

js
valueOf()

Parameters

None.

Return value

A number representing the primitive value of the specified Number object.

Description

This method is usually called internally by JavaScript and not explicitly in web code.

Examples

undefined

Using valueOf

js
const numObj = new Number(10);
console.log(typeof numObj); // object

const num = numObj.valueOf();
console.log(num); // 10
console.log(typeof num); // number

Specifications

See also