is-plain-obj

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Check if a value is a plain object

  • Types
  • ESM
License
MIT
Deps
0
Install Size
4.1 kB
Vulns
0
Published

Get started

$npm install is-plain-obj
$pnpm add is-plain-obj
$yarn add is-plain-obj
$bun add is-plain-obj
$deno add npm:is-plain-obj
$vlt install is-plain-obj
$vp add is-plain-obj

You might not need this dependency.

You can use typeof to check if a value is an object and Object.getPrototypeOf to ensure it's a plain object.

Example:
const isObject = (obj) => obj && typeof obj === "object" && (Object.getPrototypeOf(obj) === null || Object.getPrototypeOf(obj) === Object.prototype);

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Compatibility

Node.js
>=12

Versions

View all versions
4.1.0
latest

Keywords

Maintainers

Readme

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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