---
title: "Check Plain Object"
description: "Verify if a value is a plain object in TypeScript."
date: "2025-10-02"
tags: ["typescript","object","plain","frontend"]
canonical: "/snippets/typescript/object/is-plain-object"
---

import { Code } from '@astrojs/starlight/components'
import Source from './is-plain-object.ts?raw'

## Check if a value is a plain object

Objects in javascript are 'object' type, but `arrays`, `null`, `Dates`, and other
non-primitive types are also 'object' type. This function checks if a value is a
plain object (none of the above).

<Code code={Source} lang="ts" title="is-plain-object.ts" wrap />

Credits: [Angelos
Chalaris](https://www.30secondsofcode.org/js/s/is-plain-object/)