Check if an environment is big endian.
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> Check if an environment is [big endian][endianness].
``bash`
npm install @stdlib/assert-is-big-endian
`javascript`
var IS_BIG_ENDIAN = require( '@stdlib/assert-is-big-endian' );
#### IS_BIG_ENDIAN
Boolean indicating if an environment is [big endian][endianness].
`javascript`
var bool = IS_BIG_ENDIAN;
// returns
`javascript
var IS_BIG_ENDIAN = require( '@stdlib/assert-is-big-endian' );
console.log( IS_BIG_ENDIAN );
// =>
`
- [@stdlib/assert-is-big-endian-cli][@stdlib/assert-is-big-endian-cli]: CLI package for use as a command-line utility.
- [@stdlib/assert-is-little-endian][@stdlib/assert/is-little-endian]: check if an environment is little endian.
*
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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].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
[@stdlib/assert-is-big-endian-cli]: https://www.npmjs.com/package/@stdlib/assert-is-big-endian-cli
[npm-image]: http://img.shields.io/npm/v/@stdlib/assert-is-big-endian.svg
[npm-url]: https://npmjs.org/package/@stdlib/assert-is-big-endian
[test-image]: https://github.com/stdlib-js/assert-is-big-endian/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/assert-is-big-endian/actions/workflows/test.yml?query=branch:v0.2.3
[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/assert-is-big-endian/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/assert-is-big-endian?branch=main
[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/assert-is-big-endian#cli
[cli-url]: https://github.com/stdlib-js/assert-is-big-endian/tree/cli
[@stdlib/assert-is-big-endian]: https://github.com/stdlib-js/assert-is-big-endian/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/assert-is-big-endian/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-is-big-endian/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-is-big-endian/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-is-big-endian/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-is-big-endian/tree/esm
[esm-readme]: https://github.com/stdlib-js/assert-is-big-endian/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/assert-is-big-endian/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/assert-is-big-endian/main/LICENSE
[endianness]: https://en.wikipedia.org/wiki/Endianness
[@stdlib/assert/is-little-endian]: https://www.npmjs.com/package/@stdlib/assert-is-little-endian