@stdlib/assert-is-plain-object
Advanced tools
@stdlib/assert-is-plain-object is a utility package that provides a function to check if a value is a plain object. A plain object is an object created by the Object constructor or with an object literal.
Check if a value is a plain object
This feature allows you to check if a given value is a plain object. In the code sample, the function `isPlainObject` is used to check if `obj` is a plain object, which returns `true`.
const isPlainObject = require('@stdlib/assert-is-plain-object');
const obj = { 'a': 1, 'b': 2 };
const result = isPlainObject(obj);
console.log(result); // trueCheck if a non-object value is a plain object
This feature allows you to check if a non-object value is a plain object. In the code sample, the function `isPlainObject` is used to check if `notAnObject` is a plain object, which returns `false`.
const isPlainObject = require('@stdlib/assert-is-plain-object');
const notAnObject = 42;
const result = isPlainObject(notAnObject);
console.log(result); // falseCheck if an array is a plain object
This feature allows you to check if an array is a plain object. In the code sample, the function `isPlainObject` is used to check if `arr` is a plain object, which returns `false`.
const isPlainObject = require('@stdlib/assert-is-plain-object');
const arr = [1, 2, 3];
const result = isPlainObject(arr);
console.log(result); // falseThe `lodash.isplainobject` package is a utility from the Lodash library that checks if a value is a plain object. It is similar to `@stdlib/assert-is-plain-object` in functionality but is part of the larger Lodash utility library, which provides a wide range of utility functions for JavaScript.
The `is-plain-object` package is a standalone utility that checks if a value is a plain object. It is similar to `@stdlib/assert-is-plain-object` in that it focuses solely on determining if a value is a plain object, but it is a smaller, more focused package.
The `isobject` package is a utility that checks if a value is an object and not an array or null. While it is broader in scope than `@stdlib/assert-is-plain-object`, it can be used to achieve similar functionality by further checking if the object is a plain object.
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Test if a value is a plain object.
npm install @stdlib/assert-is-plain-object
var isPlainObject = require( '@stdlib/assert-is-plain-object' );
Tests if a value is a plain object.
var bool = isPlainObject( {} );
// returns true
bool = isPlainObject( null );
// returns false
var isPlainObject = require( '@stdlib/assert-is-plain-object' );
var bool = isPlainObject( {} );
// returns true
bool = isPlainObject( Object.create( null ) );
// returns true
bool = isPlainObject( [] );
// returns false
bool = isPlainObject( null );
// returns false
@stdlib/assert-is-object: test if a value is an object.This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
Copyright © 2016-2023. The Stdlib Authors.
0.1.0 (2023-09-22)
<section class="features">5200ce2: update minimum TypeScript version to 4.1
5200ce2 - feat: update minimum TypeScript version (by Philipp Burckhardt)3f60609 - test: use strictEqual checks (by Philipp Burckhardt)196225d - feat: use type predicates for narrowing (by Philipp Burckhardt)A total of 1 person contributed to this release. Thank you to this contributor:
FAQs
Test if a value is a plain object.
We found that @stdlib/assert-is-plain-object demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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