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Object.defineProperties Support

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]

Detect [Object.defineProperties][mdn-define-properties] support.

## Installation

bash
npm install @stdlib/assert-has-define-properties-support

Alternatively,

- To load the package in a website via a script tag without installation and bundlers, use the [ES Module][es-module] available on the [esm][esm-url] branch (see [README][esm-readme]).
- If you are using Deno, visit the [deno][deno-url] branch (see [README][deno-readme] for usage intructions).
- For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [umd][umd-url] branch (see [README][umd-readme]).
- To use as a general utility for the command line, install the corresponding [CLI package][cli-section] globally.

The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

## Usage

javascript
var hasDefinePropertiesSupport = require( '@stdlib/assert-has-define-properties-support' );

#### hasDefinePropertiesSupport()

Detects if a runtime environment supports [Object.defineProperties][mdn-define-properties].

javascript
var bool = hasDefinePropertiesSupport();
// returns <boolean>

## Examples

javascript
var hasDefinePropertiesSupport = require( '@stdlib/assert-has-define-properties-support' );

var bool = hasDefinePropertiesSupport();
if ( bool ) {
    console.log( 'Environment has `Object.defineProperties` support.' );
} else {
    console.log( 'Environment lacks `Object.defineProperties` support.' );
}

## CLI

## Installation

To use as a general utility, install the CLI package globally

bash
npm install -g @stdlib/assert-has-define-properties-support-cli

### Usage

text
Usage: has-define-properties-support [options]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.

### Examples

bash
$ has-define-properties-support
<boolean>

*

## Notice

This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

—-

## License

See [LICENSE][stdlib-license].

## Copyright

Copyright © 2016-2025. The Stdlib [Authors][stdlib-authors].