npm package: @stdlib/os-arch
Description: Operating system CPU architecture for which the JavaScript runtime binary was compiled.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
  <p>The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.</p>
  <p>When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.</p>
  <p>To join us in bringing numerical computing to the web, get started by checking us out on <a href="https://github.com/stdlib-js/stdlib">GitHub</a>, and please consider <a href="https://opencollective.com/stdlib">financially supporting stdlib</a>. We greatly appreciate your continued support!</p>
</details>

# Architecture

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

> Operating system CPU architecture for which the JavaScript runtime binary was compiled.

<section class="installation">

## Installation

```bash
npm install @stdlib/os-arch
```

</section>

<section class="usage">

## Usage

```javascript
var ARCH = require( '@stdlib/os-arch' );
```

#### ARCH

Operating system CPU architecture for which the JavaScript runtime binary was compiled.

```javascript
console.log( ARCH );
// => <string>
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   In general, the target build architecture of the JavaScript runtime binary should match the host architecture; however, this is **not** guaranteed to always be true (e.g., if attempting to run an x64 build of Node.js on an arm64 host machine).

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var ARCH = require( '@stdlib/os-arch' );

if ( ARCH === 'arm' || ARCH === 'arm64' ) {
    console.log( 'Running on ARM...' );
} else {
    console.log( 'Running on something else...' );
}
```

</section>

<!-- /.examples -->



<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

## See Also

-   <span class="package-name">[`@stdlib/os-arch-cli`][@stdlib/os-arch-cli]</span><span class="delimiter">: </span><span class="description">CLI package for use as a command-line utility.</span>
-   <span class="package-name">[`@stdlib/os-platform`][@stdlib/os/platform]</span><span class="delimiter">: </span><span class="description">platform on which the current process is running.</span>

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->


<section class="main-repo" >

* * *

## 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 &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[@stdlib/os-arch-cli]: https://www.npmjs.com/package/@stdlib/os-arch-cli

[npm-image]: http://img.shields.io/npm/v/@stdlib/os-arch.svg
[npm-url]: https://npmjs.org/package/@stdlib/os-arch

[test-image]: https://github.com/stdlib-js/os-arch/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/os-arch/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/os-arch/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/os-arch?branch=main

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-->

[chat-image]: https://img.shields.io/badge/zulip-join_chat-brightgreen.svg
[chat-url]: https://stdlib.zulipchat.com

[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[cli-section]: https://github.com/stdlib-js/os-arch#cli
[cli-url]: https://github.com/stdlib-js/os-arch/tree/cli
[@stdlib/os-arch]: https://github.com/stdlib-js/os-arch/tree/main

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/os-arch/tree/deno
[deno-readme]: https://github.com/stdlib-js/os-arch/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/os-arch/tree/umd
[umd-readme]: https://github.com/stdlib-js/os-arch/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/os-arch/tree/esm
[esm-readme]: https://github.com/stdlib-js/os-arch/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/os-arch/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/os-arch/main/LICENSE

<!-- <related-links> -->

[@stdlib/os/platform]: https://www.npmjs.com/package/@stdlib/os-platform

<!-- </related-links> -->

</section>

<!-- /.links -->