`Object.getPrototypeOf()`

Returns the prototype of the specified object.

Syntax

Object.getPrototypeOf(obj)

Name	Type	Required	Description
`obj`	`object`	Yes	The object whose prototype is returned.

object | null — The prototype, or null if there is none.

console.log(Object.getPrototypeOf([]) === Array.prototype);

Output

true

console.log(Object.getPrototypeOf(Object.create(null)));

Output

null

The standard way to read an object's prototype (preferred over the legacy `__proto__`). Returns null for objects created with `Object.create(null)`.