is-plain-obj

Check if a value is a plain object

An object is plain if it's created by either {}, new Object(), or Object.create(null).

Install

$ npm install is-plain-obj

Usage

import isPlainObject from 'is-plain-obj';
import {runInNewContext} from 'node:vm';

isPlainObject({foo: 'bar'});
//=> true

isPlainObject(new Object());
//=> true

isPlainObject(Object.create(null));
//=> true

// This works across realms
isPlainObject(runInNewContext('({})'));
//=> true

isPlainObject([1, 2, 3]);
//=> false

class Unicorn {}
isPlainObject(new Unicorn());
//=> false

isPlainObject(Math);
//=> false

Related

• is-obj - Check if a value is an object
• is - Type check values

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