Boolean.prototype.valueOf()

The valueOf() method of {{jsxref("Boolean")}} values returns the primitive value of a {{jsxref("Boolean")}} object.

{{InteractiveExample("JavaScript Demo: Boolean.prototype.valueOf()")}}

```js interactive-example const x = new Boolean();

console.log(x.valueOf()); // Expected output: false

const y = new Boolean("Mozilla");

console.log(y.valueOf()); // Expected output: true

## Syntax

```js-nolint
valueOf()

Parameters#

None.

Return value#

The primitive value of the given {{jsxref("Boolean")}} object.

Description#

The valueOf() method of {{jsxref("Boolean")}} returns the primitive value of a Boolean object or literal Boolean as a Boolean data type.

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

Examples#

Using valueOf()#

const x = new Boolean();
const myVar = x.valueOf(); // assigns false to myVar

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• {{jsxref("Object.prototype.valueOf()")}}