is-plain-obj

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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Similar packages

Other packages similar to is-plain-obj

is-plain-object

Similar to is-plain-obj, is-plain-object checks if a given value is a plain object. However, it might have slightly different internal implementations or dependencies, potentially affecting its performance or compatibility in certain environments.

lodash.isplainobject

Part of the Lodash library, lodash.isplainobject offers similar functionality to is-plain-obj. Lodash is a more extensive utility library, so using this function might bring in more dependencies than needed if you're only interested in checking for plain objects.